Chapter 15: Diseases of the Musculoskeletal System or Connective Tissue
ICD-11 to ICD-10 crosswalk mappings for codes FA00-FC0Z
234 ICD-11 codes in this chapter have ICD-10 crosswalk mappings from the WHO.
Includes back pain, osteoarthritis, rheumatoid arthritis, osteoporosis, gout, disc disorders, and connective tissue diseases like lupus. ICD-11 provides improved joint-specific and laterality coding for musculoskeletal conditions.
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FA00-FA0Z: Osteoarthritis
5 codes with ICD-10 mappings
FA00-FA5Z: Arthropathies
77 codes with ICD-10 mappings
FA10.2Fungal infection of joint1 mappingFA10.ZDirect infections of joint, unspecified2 mappingsFA11.0Arthropathy following intestinal bypass1 mappingFA11.1Arthropathy following vaccination1 mappingFA11.2Arthropathy following genitourinary infection1 mappingFA11.YOther specified reactive arthropathies3 mappingsFA11.ZReactive arthropathies, unspecified3 mappingsFA12.YOther specified postinfectious arthropathies1 mappingFA13Infectious spondyloarthritis3 mappingsFA1ZInfection related arthropathies, unspecified12 mappingsFA20.0Seropositive rheumatoid arthritis3 mappingsFA20.ZRheumatoid arthritis, serology unspecified7 mappingsFA21.0Psoriatic spondyloarthritis1 mappingFA21.YOther specified psoriatic arthritis2 mappingsFA21.ZPsoriatic arthritis, unspecified4 mappingsFA22Polymyalgia rheumatica1 mappingFA23Adult-onset Still disease1 mappingFA24.1Juvenile idiopathic polyarthritis2 mappingsFA24.2Juvenile psoriatic arthritis1 mappingFA24.4Juvenile systemic arthritis1 mappingFA24.ZJuvenile idiopathic arthritis, unspecified4 mappingsFA25.0Primary gout2 mappingsFA25.10Lead-induced gout1 mappingFA25.11Drug-induced gout1 mappingFA25.12Gouty arthropathy due to enzyme defects or other inherited disorders1 mappingFA25.1ZSecondary gout, unspecified2 mappingsFA25.2ZGout, unspecified1 mappingFA26.1Hydroxyapatite deposition disease1 mappingFA26.2Chondrocalcinosis2 mappingsFA26.ZCrystal arthropathies, unspecified4 mappingsFA27.0Kashin-Beck disease1 mappingFA27.1Pigmented villonodular synovitis1 mappingFA27.2Palindromic rheumatism1 mappingFA27.3Transient synovitis1 mappingFA27.4Intermittent hydrarthrosis1 mappingFA27.YOther specified inflammatory arthropathies4 mappingsFA2ZInflammatory arthropathies, unspecified9 mappingsFA30.0Acquired hallux valgus1 mappingFA30.1Hallux rigidus1 mappingFA30.2Acquired hammer toe1 mappingFA30.YOther specified acquired deformities of fingers or toes2 mappingsFA30.ZAcquired deformities of fingers or toes, unspecified3 mappingsFA31.0Valgus deformity, not elsewhere classified1 mappingFA31.1Varus deformity, not elsewhere classified1 mappingFA31.2Flexion deformity1 mappingFA31.3Acquired wrist drop1 mappingFA31.5Acquired pes planus1 mappingFA31.7Acquired clawfoot or clubfoot1 mappingFA31.8Acquired unequal limb length1 mappingFA31.ZAcquired deformities of limbs, unspecified4 mappingsFA32.0Recurrent instability of patella2 mappingsFA32.1Patellofemoral disorders1 mappingFA32.ZDisorders of patella, unspecified4 mappingsFA33.0Cystic meniscus1 mappingFA33.1Discoid meniscus1 mappingFA33.2Derangement of meniscus due to old tear or injury1 mappingFA33.3Loose body in knee1 mappingFA33.4ZChronic instability of knee, unspecified1 mappingFA33.ZInternal derangement of knee, unspecified5 mappingsFA34.0Loose body in joint1 mappingFA34.1Disorder of ligament1 mappingFA34.2Recurrent instability of joint1 mappingFA34.3Contracture of joint1 mappingFA34.4Ankylosis of joint1 mappingFA34.YOther joint derangements6 mappingsFA36.0Effusion of joint containing blood1 mappingFA36.ZEffusion of joint, unspecified1 mappingFA37.0Osteophyte1 mappingFA37.YOther specified certain joint disorders, not elsewhere classified3 mappingsFA37.ZCertain joint disorders, not elsewhere classified, unspecified3 mappingsFA38.0Diabetic arthropathy1 mappingFA38.1ZNeuropathic arthropathy, unspecified1 mappingFA38.2Arthropathy in hypersensitivity reactions classified elsewhere1 mappingFA38.3Haemophilic arthropathy1 mappingFA38.YArthropathy in other specified diseases classified elsewhere6 mappingsFA3ZUnspecified joint disorders and deformities of limbs1 mappingFA5ZArthropathies, unspecified1 mapping
FA70-FA7Z: Structural disorders of spine
11 codes with ICD-10 mappings
FA70.0Kyphosis3 mappingsFA70.1Scoliosis9 mappingsFA70.2Lordosis3 mappingsFA70.ZSpinal deformities, unspecified1 mappingFA71Torticollis1 mappingFA72.0Ankylosing hyperostosis1 mappingFA72.1Kissing spine1 mappingFA72.2Traumatic spondylopathy1 mappingFA72.3Fatigue fracture of vertebra1 mappingFA72.4Collapsed vertebra, not elsewhere classified1 mappingFA72.ZDisorders of vertebra, unspecified3 mappings
FA70-FB1Z: Conditions associated with the spine
19 codes with ICD-10 mappings
FA80.1Intervertebral disc degeneration of cervical spine with prolapsed disc1 mappingFA80.3Intervertebral disc degeneration of cervical spine with nervous system involvement4 mappingsFA80.ZIntervertebral disc degeneration, unspecified9 mappingsFA81.ZSpondylolysis, unspecified1 mappingFA82Spinal stenosis1 mappingFA84.ZSpondylolisthesis, unspecified1 mappingFA85.10Localised central endplate defect1 mappingFA85.ZSpinal endplate defects, unspecified3 mappingsFA8ZDegenerative condition of spine, unspecified3 mappingsFA90.ZInfection of vertebra, unspecified1 mappingFA91Infection of intervertebral disc1 mappingFA92.00Spinal enthesitis1 mappingFA92.01Sacroiliitis, not elsewhere classified1 mappingFA92.0ZAxial spondyloarthritis, unspecified1 mappingFA9ZInflammation of spine, unspecified6 mappingsFB0YOther specified spondylopathies5 mappingsFB0ZSpondylopathies, unspecified4 mappingsFB10Spinal instabilities1 mappingFB1ZConditions associated with the spine, unspecified10 mappings
FB30-FB3Z: Disorders of muscles
13 codes with ICD-10 mappings
FB30Infectious myositis1 mappingFB31.1Fibrodysplasia ossificans progressiva1 mappingFB31.YOther specified calcification or ossification of muscle5 mappingsFB31.ZCalcification or ossification of muscle, unspecified2 mappingsFB32.0Diastasis of muscle1 mappingFB32.1Spontaneous rupture of muscle1 mappingFB32.2ZIschaemic infarction of muscle, unspecified1 mappingFB32.3Immobility syndrome1 mappingFB32.4Contracture of muscle1 mappingFB32.5Muscle strain or sprain1 mappingFB32.YOther specified disorders of muscles5 mappingsFB33Secondary disorders of muscle6 mappingsFB3ZDisorders of muscles, unspecified4 mappings
FB30-FB6Z: Soft tissue disorders
49 codes with ICD-10 mappings
FB40.0Infectious tenosynovitis2 mappingsFB40.3Calcific tendinitis2 mappingsFB40.4Trigger finger1 mappingFB40.5Radial styloid tenosynovitis1 mappingFB40.YOther specified tenosynovitis6 mappingsFB40.ZTenosynovitis, unspecified3 mappingsFB41.0Spontaneous rupture of popliteal cyst1 mappingFB41.1Spontaneous rupture of synovium1 mappingFB41.2Spontaneous rupture of tendon3 mappingsFB41.ZSpontaneous rupture of synovium or tendon, unspecified2 mappingsFB42.0Acquired short Achilles tendon1 mappingFB42.2Ganglion1 mappingFB42.3Synovial hypertrophy, not elsewhere classified5 mappingsFB43Secondary disorders of synovium or tendon3 mappingsFB4ZDisorders of synovium or tendon, unspecified1 mappingFB50.0Infectious bursitis2 mappingsFB50.1Bursitis related to use, overuse or pressure4 mappingsFB50.2Synovial cyst of popliteal space1 mappingFB50.3Calcium deposit in bursa1 mappingFB50.ZBursitis, unspecified14 mappingsFB51.0Palmar fascial fibromatosis1 mappingFB51.1Knuckle pads1 mappingFB51.2Fasciitis and fibromatosis1 mappingFB51.4ZRetroperitoneal fibrosis, unspecified1 mappingFB51.YOther specified fibroblastic disorders2 mappingsFB51.ZFibroblastic disorders, unspecified3 mappingsFB52Soft tissue disorders in diseases classified elsewhere2 mappingsFB53.0Adhesive capsulitis of shoulder1 mappingFB53.1Rotator cuff syndrome1 mappingFB53.2Impingement syndrome of shoulder1 mappingFB53.ZShoulder lesions, unspecified4 mappingsFB54.0Iliac crest spur1 mappingFB54.1Iliotibial band syndrome1 mappingFB54.2Tibial collateral bursitis1 mappingFB54.3Calcaneal spur1 mappingFB54.4Metatarsalgia1 mappingFB54.ZEnthesopathies of lower limb, unspecified4 mappingsFB55.0Medial epicondylitis of elbow1 mappingFB55.1Lateral epicondylitis of elbow1 mappingFB55.2Periarthritis of wrist1 mappingFB55.ZEnthesopathies, unspecified3 mappingsFB56Specified soft tissue disorders, not elsewhere classified1 mappingFB56.0Foreign body granuloma of soft tissue, not elsewhere classified1 mappingFB56.1Residual foreign body in soft tissue5 mappingsFB56.2Myalgia1 mappingFB56.3Hypertrophy of infrapatellar fat pad1 mappingFB56.4Pain in limb1 mappingFB56.6Other specified soft tissue disorders1 mappingFB6ZSoft tissue disorders, unspecified1 mapping
FB80-FB8Z: Osteopathies or chondropathies
46 codes with ICD-10 mappings
FB80.0Fibrous dysplasia of bone2 mappingsFB80.2Osteitis condensans1 mappingFB80.3Hyperostosis of skull1 mappingFB80.5Solitary bone cyst1 mappingFB80.6Aneurysmal bone cyst1 mappingFB80.7Malunion of fracture1 mappingFB80.8Nonunion of fracture1 mappingFB80.9Delayed union of fracture1 mappingFB80.AStress fracture, not elsewhere classified1 mappingFB80.BPathological fracture2 mappingsFB80.YOther specified disorders of bone density or structure1 mappingFB80.ZDisorder of bone density or structure, unspecified7 mappingsFB81.0Idiopathic aseptic osteonecrosis2 mappingsFB81.2Drug-induced osteonecrosis1 mappingFB81.3Osteonecrosis due to trauma1 mappingFB81.4Osteonecrosis due to haemoglobinopathy1 mappingFB81.YOther specified osteonecrosis2 mappingsFB81.ZOsteonecrosis, unspecified3 mappingsFB82.00Chondromalacia patellae1 mappingFB82.0ZChondromalacia, unspecified1 mappingFB82.1Osteochondrosis or osteochondritis dissecans20 mappingsFB82.2Slipped upper femoral epiphysis1 mappingFB82.3Relapsing polychondritis1 mappingFB82.ZChondropathies, unspecified9 mappingsFB83.11Postmenopausal osteoporosis1 mappingFB83.12Osteoporosis of disuse1 mappingFB83.13Drug-induced osteoporosis1 mappingFB83.1ZOsteoporosis, unspecified20 mappingsFB83.20Aluminium bone disease1 mappingFB83.21Adult osteomalacia due to malnutrition1 mappingFB83.22Drug-induced adult osteomalacia1 mappingFB83.2YOther specified adult osteomalacia1 mappingFB83.2ZAdult osteomalacia, unspecified4 mappingsFB84.0Acute haematogenous osteomyelitis1 mappingFB84.2Subacute osteomyelitis1 mappingFB84.5Other chronic haematogenous osteomyelitis1 mappingFB84.YOther specified osteomyelitis or osteitis1 mappingFB84.ZOsteomyelitis or osteitis, unspecified7 mappingsFB85.1Paget disease of bone in neoplastic disease1 mappingFB85.ZPaget disease of bone, unspecified3 mappingsFB86.0Epiphyseal arrest1 mappingFB86.10Hypertrophic osteoarthropathy2 mappingsFB86.11Hypertrophy of bone1 mappingFB86.2Osteolysis1 mappingFB86.ZDisorders associated with bone growth, unspecified6 mappingsFB8ZOsteopathies or chondropathies, unspecified7 mappings