[
  {
    "phenotype_id": "PH3764",
    "phenotype_version_id": 8907,
    "name": "Symptoms: mobility impairment",
    "definition": "This codelist was taken from [OpenCodelists](https://www.opencodelists.org/), created by [OpenSAFELY](https://www.opensafely.org/). We recommend viewing this Phenotype on the OpenCodelist website to view the most recent version.\n\n\nCode list aiming to identify individuals consulting complaining of mobility impairment.\n\n\n© University of Oxford for the Bennett Institute for Applied Data Science 2025\\. This work may be copied freely for non\\-commercial research and study.\n\n",
    "implementation": null,
    "publications": null,
    "validation": null,
    "citation_requirements": null,
    "created": "2026-01-26T23:33:26.524625Z",
    "author": "OpenSAFELY",
    "collections": [
      {
        "name": "OpenCodelist",
        "value": 31
      },
      {
        "name": "Phenotype Library",
        "value": 18
      }
    ],
    "tags": null,
    "organisation": {
      "id": 1,
      "slug": "opensafely",
      "name": "OpenSAFELY"
    },
    "world_access": 1,
    "updated": "2026-01-26T23:33:28.154108Z",
    "references": [],
    "signed_off": [],
    "methodology": "Identified from intial search terms outside of OpenCodelists: \"mobility\" \"ambulation\" \"walk\" \"gait\" ambulate\" \"mobile\" \"unsteady\" \"off legs\" balance\" \"postural sway\"\n\n\nClearly irrelevant codes excluded (exclusions reviewed by a second clinician)\n\n\nCandidate codelist uploaded to OpenCodelists for review of candidate codes.\n\n\nDizziness and balance related mobility issues excluded due to inclusion on dizziness specific code list.\n\n",
    "coding_system": [
      {
        "name": "SNOMED  CT codes",
        "value": 9
      }
    ],
    "open_codelist_id": "opensafely/symptoms-mobility-impairment",
    "source_reference": "https://www.opencodelists.org/codelist/opensafely/symptoms-mobility-impairment/62a81387",
    "concept_information": [
      {
        "concept_id": 9084,
        "concept_version_id": 16569,
        "concept_name": "opensafely/symptoms-mobility-impairment/62a81387",
        "coding_system": {
          "id": 9,
          "name": "SNOMED  CT codes",
          "description": "SNOMED CT codes"
        },
        "phenotype_id": "PH3764",
        "phenotype_version_id": 8907,
        "phenotype_name": "Symptoms: mobility impairment",
        "code_attribute_header": [],
        "codes": [
          {
            "code": "100831000000109",
            "description": "Difficulty walking up stairs",
            "attributes": null
          },
          {
            "code": "102491009",
            "description": "Immobile",
            "attributes": null
          },
          {
            "code": "102567002",
            "description": "Loss of control of walking",
            "attributes": null
          },
          {
            "code": "105504002",
            "description": "Dependence on walking stick",
            "attributes": null
          },
          {
            "code": "1070531000000108",
            "description": "Difficulty mobilising using mobility scooter",
            "attributes": null
          },
          {
            "code": "1072211000000102",
            "description": "Does not mobilise using mobility scooter",
            "attributes": null
          },
          {
            "code": "1072231000000105",
            "description": "Does not mobilise using outdoor motorised wheelchair",
            "attributes": null
          },
          {
            "code": "129857008",
            "description": "Impaired wheelchair mobility",
            "attributes": null
          },
          {
            "code": "129859006",
            "description": "Impaired bed mobility",
            "attributes": null
          },
          {
            "code": "138073002",
            "description": "Needs walking aid in home",
            "attributes": null
          },
          {
            "code": "138081001",
            "description": "Immobile",
            "attributes": null
          },
          {
            "code": "138082008",
            "description": "Mobility very poor",
            "attributes": null
          },
          {
            "code": "138083003",
            "description": "Mobility poor",
            "attributes": null
          },
          {
            "code": "142650001",
            "description": "Immobile",
            "attributes": null
          },
          {
            "code": "142661009",
            "description": "Walking aid use",
            "attributes": null
          },
          {
            "code": "142663007",
            "description": "Stick only for walking",
            "attributes": null
          },
          {
            "code": "151601002",
            "description": "Use of indoor mobility aids",
            "attributes": null
          },
          {
            "code": "156615004",
            "description": "Difficulty in walking",
            "attributes": null
          },
          {
            "code": "158195007",
            "description": "[D]Gait abnormality",
            "attributes": null
          },
          {
            "code": "158200003",
            "description": "[D]Gait abnormality NOS",
            "attributes": null
          },
          {
            "code": "160681005",
            "description": "Mobile outside with aid",
            "attributes": null
          },
          {
            "code": "160683008",
            "description": "Needs walking aid in home",
            "attributes": null
          },
          {
            "code": "160684002",
            "description": "Confined to chair",
            "attributes": null
          },
          {
            "code": "160685001",
            "description": "Bed-ridden",
            "attributes": null
          },
          {
            "code": "160691004",
            "description": "Immobile",
            "attributes": null
          },
          {
            "code": "160692006",
            "description": "Mobility very poor",
            "attributes": null
          },
          {
            "code": "160693001",
            "description": "Mobility poor",
            "attributes": null
          },
          {
            "code": "162259001",
            "description": "(Unsteadiness present) or (feels off balance)",
            "attributes": null
          },
          {
            "code": "165243005",
            "description": "Independent in wheelchair",
            "attributes": null
          },
          {
            "code": "165244004",
            "description": "Minimal help in wheelchair",
            "attributes": null
          },
          {
            "code": "165251008",
            "description": "Walking aid use",
            "attributes": null
          },
          {
            "code": "165253006",
            "description": "Stick only for walking",
            "attributes": null
          },
          {
            "code": "165255004",
            "description": "Uses zimmer frame",
            "attributes": null
          },
          {
            "code": "183259003",
            "description": "Loan of walking stick",
            "attributes": null
          },
          {
            "code": "183368003",
            "description": "Use of indoor mobility aids",
            "attributes": null
          },
          {
            "code": "202565009",
            "description": "Difficulty in walking",
            "attributes": null
          },
          {
            "code": "202566005",
            "description": "Walking difficulty due to unspecified site",
            "attributes": null
          },
          {
            "code": "202571003",
            "description": "Walking difficulty due to other specified site",
            "attributes": null
          },
          {
            "code": "202573000",
            "description": "Difficulty in walking NOS",
            "attributes": null
          },
          {
            "code": "203041005",
            "description": "Immobility syndrome",
            "attributes": null
          },
          {
            "code": "206782006",
            "description": "[D] Poor mobility",
            "attributes": null
          },
          {
            "code": "206817004",
            "description": "[D]Gait abnormality",
            "attributes": null
          },
          {
            "code": "206823009",
            "description": "[D]Gait abnormality NOS",
            "attributes": null
          },
          {
            "code": "207597001",
            "description": "[X]Difficulty in walking, not elsewhere classified",
            "attributes": null
          },
          {
            "code": "207598006",
            "description": "[X]Other and unspecified abnormalities of gait and mobility",
            "attributes": null
          },
          {
            "code": "22325002",
            "description": "Abnormal gait",
            "attributes": null
          },
          {
            "code": "225612007",
            "description": "Wheelchair bound",
            "attributes": null
          },
          {
            "code": "225991001",
            "description": "Ensuring mobility aid available",
            "attributes": null
          },
          {
            "code": "22631008",
            "description": "Unsteady when walking",
            "attributes": null
          },
          {
            "code": "228158008",
            "description": "Walking disability",
            "attributes": null
          },
          {
            "code": "243101000000107",
            "description": "Patient walking with assistance",
            "attributes": null
          },
          {
            "code": "248244005",
            "description": "Walking distance reduced",
            "attributes": null
          },
          {
            "code": "249897001",
            "description": "Has gone off legs",
            "attributes": null
          },
          {
            "code": "249983008",
            "description": "Feels as though will fall",
            "attributes": null
          },
          {
            "code": "249984002",
            "description": "Keeps losing balance",
            "attributes": null
          },
          {
            "code": "249985001",
            "description": "Poor balance",
            "attributes": null
          },
          {
            "code": "249990003",
            "description": "Unsteady when standing",
            "attributes": null
          },
          {
            "code": "249991004",
            "description": "Postural sway when standing",
            "attributes": null
          },
          {
            "code": "249992006",
            "description": "Unsteady when turning",
            "attributes": null
          },
          {
            "code": "250044006",
            "description": "Cautious gait",
            "attributes": null
          },
          {
            "code": "250045007",
            "description": "Tottering gait",
            "attributes": null
          },
          {
            "code": "250055006",
            "description": "Incongruous gait",
            "attributes": null
          },
          {
            "code": "250056007",
            "description": "Bizarre gait",
            "attributes": null
          },
          {
            "code": "250991000119100",
            "description": "Stumbling gait",
            "attributes": null
          },
          {
            "code": "271707009",
            "description": "Hysterical gait",
            "attributes": null
          },
          {
            "code": "271713000",
            "description": "General unsteadiness",
            "attributes": null
          },
          {
            "code": "282145008",
            "description": "Unable to walk",
            "attributes": null
          },
          {
            "code": "282150002",
            "description": "Unable to walk on the flat",
            "attributes": null
          },
          {
            "code": "282153000",
            "description": "Difficulty walking on the flat",
            "attributes": null
          },
          {
            "code": "282156008",
            "description": "Unable to walk up a slope",
            "attributes": null
          },
          {
            "code": "282159001",
            "description": "Difficulty walking up a slope",
            "attributes": null
          },
          {
            "code": "282162003",
            "description": "Unable to walk down a slope",
            "attributes": null
          },
          {
            "code": "282165001",
            "description": "Difficulty walking down a slope",
            "attributes": null
          },
          {
            "code": "282168004",
            "description": "Unable to walk up hill",
            "attributes": null
          },
          {
            "code": "282171007",
            "description": "Difficulty walking up hill",
            "attributes": null
          },
          {
            "code": "282174004",
            "description": "Unable to walk down hill",
            "attributes": null
          },
          {
            "code": "282177006",
            "description": "Difficulty walking down hill",
            "attributes": null
          },
          {
            "code": "282180007",
            "description": "Unable to walk up step",
            "attributes": null
          },
          {
            "code": "282183009",
            "description": "Difficulty walking up step",
            "attributes": null
          },
          {
            "code": "282186001",
            "description": "Unable to walk down step",
            "attributes": null
          },
          {
            "code": "282189008",
            "description": "Difficulty walking down step",
            "attributes": null
          },
          {
            "code": "282195009",
            "description": "Difficulty walking up stairs",
            "attributes": null
          },
          {
            "code": "282198006",
            "description": "Unable to walk down stairs",
            "attributes": null
          },
          {
            "code": "282201001",
            "description": "Difficulty walking down stairs",
            "attributes": null
          },
          {
            "code": "282204009",
            "description": "Unable to initiate walking",
            "attributes": null
          },
          {
            "code": "282206006",
            "description": "Does not initiate walking",
            "attributes": null
          },
          {
            "code": "282207002",
            "description": "Difficulty initiating walking",
            "attributes": null
          },
          {
            "code": "282210009",
            "description": "Unable to stop walking",
            "attributes": null
          },
          {
            "code": "282213006",
            "description": "Difficulty in stopping walking",
            "attributes": null
          },
          {
            "code": "282216003",
            "description": "Unable to start and stop walking spontaneously",
            "attributes": null
          },
          {
            "code": "282220004",
            "description": "Difficulty in starting and stopping walking spontaneously",
            "attributes": null
          },
          {
            "code": "282223002",
            "description": "Unable to walk on a narrow line",
            "attributes": null
          },
          {
            "code": "282226005",
            "description": "Difficulty walking on a narrow line",
            "attributes": null
          },
          {
            "code": "282229003",
            "description": "Unable to walk heel to toe",
            "attributes": null
          },
          {
            "code": "282232000",
            "description": "Difficulty walking heel to toe",
            "attributes": null
          },
          {
            "code": "282299006",
            "description": "Unable to balance",
            "attributes": null
          },
          {
            "code": "282301004",
            "description": "Does not balance",
            "attributes": null
          },
          {
            "code": "282302006",
            "description": "Difficulty balancing",
            "attributes": null
          },
          {
            "code": "282305008",
            "description": "Unable to balance when sitting",
            "attributes": null
          },
          {
            "code": "282307000",
            "description": "Does not balance when sitting",
            "attributes": null
          },
          {
            "code": "282308005",
            "description": "Difficulty balancing when sitting",
            "attributes": null
          },
          {
            "code": "282311006",
            "description": "Unable to balance when standing",
            "attributes": null
          },
          {
            "code": "282314003",
            "description": "Does not balance when standing",
            "attributes": null
          },
          {
            "code": "282315002",
            "description": "Difficulty balancing when standing",
            "attributes": null
          },
          {
            "code": "284408005",
            "description": "Difficulty balancing when bending",
            "attributes": null
          },
          {
            "code": "284409002",
            "description": "Does not balance when bending",
            "attributes": null
          },
          {
            "code": "284411006",
            "description": "Unable to balance when bending",
            "attributes": null
          },
          {
            "code": "284413009",
            "description": "Difficulty balancing when reaching",
            "attributes": null
          },
          {
            "code": "284414003",
            "description": "Does not balance when reaching",
            "attributes": null
          },
          {
            "code": "284416001",
            "description": "Unable to balance when reaching",
            "attributes": null
          },
          {
            "code": "299031000000106",
            "description": "Disorder of gait and/or balance present",
            "attributes": null
          },
          {
            "code": "299041000000102",
            "description": "Disorder of gait and/or balance present",
            "attributes": null
          },
          {
            "code": "299051000000104",
            "description": "Disorder of gait and/or balance present",
            "attributes": null
          },
          {
            "code": "301571004",
            "description": "Unable to mobilize using mobility aids",
            "attributes": null
          },
          {
            "code": "301573001",
            "description": "Does not mobilize using mobility aids",
            "attributes": null
          },
          {
            "code": "301574007",
            "description": "Difficulty mobilizing using mobility aids",
            "attributes": null
          },
          {
            "code": "301577000",
            "description": "Unable to mobilize using wheelchair",
            "attributes": null
          },
          {
            "code": "301579002",
            "description": "Does not mobilize using wheelchair",
            "attributes": null
          },
          {
            "code": "301580004",
            "description": "Difficulty mobilizing using wheelchair",
            "attributes": null
          },
          {
            "code": "316247003",
            "description": "[V]Reduced mobility",
            "attributes": null
          },
          {
            "code": "320301000000109",
            "description": "Unable to walk long distances",
            "attributes": null
          },
          {
            "code": "32181000119106",
            "description": "Gait disorder due to weakness",
            "attributes": null
          },
          {
            "code": "3235001",
            "description": "Disorder of balance",
            "attributes": null
          },
          {
            "code": "372111000000109",
            "description": "Unable to mobilise using mobility scooter - Common Assessment Framework",
            "attributes": null
          },
          {
            "code": "387603000",
            "description": "Impairment of balance",
            "attributes": null
          },
          {
            "code": "39061000000102",
            "description": "Impaired mobility",
            "attributes": null
          },
          {
            "code": "390621000000101",
            "description": "[X]Difficulty in walking, not elsewhere classified",
            "attributes": null
          },
          {
            "code": "393623001",
            "description": "Unsteady gait",
            "attributes": null
          },
          {
            "code": "394616008",
            "description": "Unsteady gait",
            "attributes": null
          },
          {
            "code": "394922001",
            "description": "[D]Unsteady gait",
            "attributes": null
          },
          {
            "code": "401265005",
            "description": "Mobility equipment requested",
            "attributes": null
          },
          {
            "code": "404974001",
            "description": "Impaired mobility: physiological status",
            "attributes": null
          },
          {
            "code": "404975000",
            "description": "Impaired mobility: psycho-cognitive status",
            "attributes": null
          },
          {
            "code": "406209002",
            "description": "Effect of impaired mobility",
            "attributes": null
          },
          {
            "code": "40911000000107",
            "description": "Mobility equipment requested",
            "attributes": null
          },
          {
            "code": "412601000000100",
            "description": "[D]Gait abnormality NOS",
            "attributes": null
          },
          {
            "code": "413121008",
            "description": "Dependent on helper pushing wheelchair",
            "attributes": null
          },
          {
            "code": "41321000000105",
            "description": "Impaired mobility",
            "attributes": null
          },
          {
            "code": "416111000000107",
            "description": "[V]Reduced mobility",
            "attributes": null
          },
          {
            "code": "424429009",
            "description": "Gait dyspraxia",
            "attributes": null
          },
          {
            "code": "427512004",
            "description": "Dependent for walking",
            "attributes": null
          },
          {
            "code": "428116008",
            "description": "Multifactorial gait problem",
            "attributes": null
          },
          {
            "code": "431524008",
            "description": "Abnormal gait due to impairment of balance",
            "attributes": null
          },
          {
            "code": "432559006",
            "description": "Abnormal gait due to muscle weakness",
            "attributes": null
          },
          {
            "code": "43271000000103",
            "description": "Mobility equipment requested",
            "attributes": null
          },
          {
            "code": "439761000000108",
            "description": "[D]Gait abnormality NOS",
            "attributes": null
          },
          {
            "code": "443320005",
            "description": "Uses single walking stick",
            "attributes": null
          },
          {
            "code": "443392007",
            "description": "Uses single crutch for walking",
            "attributes": null
          },
          {
            "code": "443663000",
            "description": "Uses two crutches for walking",
            "attributes": null
          },
          {
            "code": "443699005",
            "description": "Uses two walking sticks",
            "attributes": null
          },
          {
            "code": "45431000000103",
            "description": "Mobility equipment requested (context-dependent category)",
            "attributes": null
          },
          {
            "code": "46501000000103",
            "description": "Impaired mobility",
            "attributes": null
          },
          {
            "code": "47211000000102",
            "description": "Mobility equipment requested",
            "attributes": null
          },
          {
            "code": "47561000000102",
            "description": "Impaired mobility",
            "attributes": null
          },
          {
            "code": "478851000000106",
            "description": "[X]Other and unspecified abnormalities of gait and mobility",
            "attributes": null
          },
          {
            "code": "495881000000100",
            "description": "[D]Poor mobility",
            "attributes": null
          },
          {
            "code": "496121000000100",
            "description": "[D]Gait abnormality",
            "attributes": null
          },
          {
            "code": "502971000000105",
            "description": "[D]Unsteady gait",
            "attributes": null
          },
          {
            "code": "505941000000106",
            "description": "Uses single walking stick",
            "attributes": null
          },
          {
            "code": "505961000000107",
            "description": "Uses two walking sticks",
            "attributes": null
          },
          {
            "code": "506431000000103",
            "description": "Uses two crutches for walking",
            "attributes": null
          },
          {
            "code": "506441000000107",
            "description": "Uses single crutch for walking",
            "attributes": null
          },
          {
            "code": "519381000000101",
            "description": "Dependent lymphoedema due to immobility",
            "attributes": null
          },
          {
            "code": "520871000000108",
            "description": "Ambulation with assistance of one person",
            "attributes": null
          },
          {
            "code": "520881000000105",
            "description": "Ambulation with assistance of two people",
            "attributes": null
          },
          {
            "code": "520891000000107",
            "description": "Ambulation with assistance of team of people",
            "attributes": null
          },
          {
            "code": "594781000000100",
            "description": "Walking difficulty due to unspecified site",
            "attributes": null
          },
          {
            "code": "594801000000104",
            "description": "Walking difficulty due to other specified site",
            "attributes": null
          },
          {
            "code": "594811000000102",
            "description": "Difficulty in walking NOS",
            "attributes": null
          },
          {
            "code": "67759008",
            "description": "Musculoskeletal immobility",
            "attributes": null
          },
          {
            "code": "69161000119103",
            "description": "Functional gait abnormality",
            "attributes": null
          },
          {
            "code": "707261001",
            "description": "Deterioration in ability to walk up stairs",
            "attributes": null
          },
          {
            "code": "710803000",
            "description": "Assistance with mobility",
            "attributes": null
          },
          {
            "code": "710804006",
            "description": "Assistance with walking using device",
            "attributes": null
          },
          {
            "code": "711387003",
            "description": "Deterioration in ability to walk",
            "attributes": null
          },
          {
            "code": "713138001",
            "description": "Assistance with mobility in bed",
            "attributes": null
          },
          {
            "code": "715012000",
            "description": "Unable to walk on uneven surface",
            "attributes": null
          },
          {
            "code": "715015003",
            "description": "Difficulty walking on uneven surface",
            "attributes": null
          },
          {
            "code": "715027000",
            "description": "Difficulty walking in corridor",
            "attributes": null
          },
          {
            "code": "715028005",
            "description": "Difficulty walking in room",
            "attributes": null
          },
          {
            "code": "719232003",
            "description": "Difficulty walking",
            "attributes": null
          },
          {
            "code": "720011008",
            "description": "Does use walking aid when standing alone",
            "attributes": null
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