AutoICD API

Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue

ICD-10 to ICD-11 crosswalk mappings for codes M00-M99

542 ICD-10 codes in this chapter have ICD-11 crosswalk mappings from the WHO.

Includes back pain, osteoarthritis, rheumatoid arthritis, osteoporosis, gout, disc disorders, tendinitis, and connective tissue diseases like lupus. Low back pain (M54.5) and knee osteoarthritis (M17) are among the most frequently coded conditions in outpatient medicine.

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M00-M02: Infectious Arthropathies

14 codes with ICD-11 mappings

M05-M14: Inflammatory Polyarthropathies

53 codes with ICD-11 mappings

M05Rheumatoid arthritis with rheumatoid factor1 mappingM05.0Felty's syndrome1 mappingM05.1Rheumatoid lung disease with rheumatoid arthritis1 mappingM05.2Rheumatoid vasculitis with rheumatoid arthritis1 mappingM05.3Rheumatoid heart disease with rheumatoid arthritis1 mappingM05.8Other rheumatoid arthritis with rheumatoid factor1 mappingM05.9Rheumatoid arthritis with rheumatoid factor, unspecified1 mappingM06Other rheumatoid arthritis1 mappingM06.0Rheumatoid arthritis without rheumatoid factor1 mappingM06.1Adult-onset Still's disease1 mappingM06.2Rheumatoid bursitis1 mappingM06.3Rheumatoid nodule1 mappingM06.4Inflammatory polyarthropathy1 mappingM06.8Other specified rheumatoid arthritis1 mappingM06.9Rheumatoid arthritis, unspecified1 mappingM07Enteropathic arthropathies1 mappingM07.6Enteropathic arthropathies1 mappingM08Juvenile arthritis1 mappingM08.0Unspecified juvenile rheumatoid arthritis1 mappingM08.1Juvenile ankylosing spondylitis1 mappingM08.2Juvenile rheumatoid arthritis with systemic onset1 mappingM08.3Juvenile rheumatoid polyarthritis (seronegative)1 mappingM08.4Pauciarticular juvenile rheumatoid arthritis1 mappingM08.8Other juvenile arthritis1 mappingM08.9Juvenile arthritis, unspecified1 mappingM10Gout1 mappingM10.0Idiopathic gout1 mappingM10.1Lead-induced gout1 mappingM10.2Drug-induced gout1 mappingM10.3Gout due to renal impairment1 mappingM10.4Other secondary gout1 mappingM10.9Gout, unspecified1 mappingM11Other crystal arthropathies1 mappingM11.0Hydroxyapatite deposition disease1 mappingM11.1Familial chondrocalcinosis1 mappingM11.2Other chondrocalcinosis1 mappingM11.8Other specified crystal arthropathies1 mappingM11.9Crystal arthropathy, unspecified1 mappingM12Other and unspecified arthropathy1 mappingM12.0Chronic postrheumatic arthropathy [Jaccoud]1 mappingM12.1Kaschin-Beck disease1 mappingM12.2Villonodular synovitis (pigmented)1 mappingM12.3Palindromic rheumatism1 mappingM12.4Intermittent hydrarthrosis1 mappingM12.5Traumatic arthropathy1 mappingM12.8Other specific arthropathies, not elsewhere classified1 mappingM13Other arthritis1 mappingM13.0Polyarthritis, unspecified1 mappingM13.1Monoarthritis, not elsewhere classified1 mappingM13.8Other specified arthritis1 mappingM14Arthropathies in other diseases classified elsewhere1 mappingM14.6Charcot's joint1 mappingM14.8Arthropathies in oth diseases classified elsewhere1 mapping

M15-M19: Osteoarthritis

39 codes with ICD-11 mappings

M15Polyosteoarthritis1 mappingM15.0Primary generalized (osteo)arthritis1 mappingM15.1Heberden's nodes (with arthropathy)1 mappingM15.2Bouchard's nodes (with arthropathy)1 mappingM15.3Secondary multiple arthritis1 mappingM15.4Erosive (osteo)arthritis1 mappingM15.8Other polyosteoarthritis1 mappingM15.9Polyosteoarthritis, unspecified1 mappingM16Osteoarthritis of hip1 mappingM16.0Bilateral primary osteoarthritis of hip1 mappingM16.1Unilateral primary osteoarthritis of hip1 mappingM16.2Bilateral osteoarthritis resulting from hip dysplasia1 mappingM16.3Unilateral osteoarthritis resulting from hip dysplasia1 mappingM16.4Bilateral post-traumatic osteoarthritis of hip1 mappingM16.5Unilateral post-traumatic osteoarthritis of hip1 mappingM16.6Other bilateral secondary osteoarthritis of hip1 mappingM16.7Other unilateral secondary osteoarthritis of hip1 mappingM16.9Osteoarthritis of hip, unspecified1 mappingM17Osteoarthritis of knee1 mappingM17.0Bilateral primary osteoarthritis of knee1 mappingM17.1Unilateral primary osteoarthritis of knee1 mappingM17.2Bilateral post-traumatic osteoarthritis of knee1 mappingM17.3Unilateral post-traumatic osteoarthritis of knee1 mappingM17.4Other bilateral secondary osteoarthritis of knee1 mappingM17.5Other unilateral secondary osteoarthritis of knee1 mappingM17.9Osteoarthritis of knee, unspecified1 mappingM18Osteoarthritis of first carpometacarpal joint1 mappingM18.0Bilateral primary osteoarth of first carpometacarp joints1 mappingM18.1Unilateral primary osteoarth of first carpometacarp joint1 mappingM18.2Bi post-trauma osteoarth of first carpometacarp joints1 mappingM18.3Unil post-trauma osteoarth of first carpometacarp joint1 mappingM18.4Oth bi secondary osteoarth of first carpometacarp joints1 mappingM18.5Oth unil secondary osteoarth of first carpometacarp joint1 mappingM18.9Osteoarthritis of first carpometacarpal joint, unspecified1 mappingM19Other and unspecified osteoarthritis1 mappingM19.0Primary osteoarthritis of other joints1 mappingM19.1Post-traumatic osteoarthritis of other joints1 mappingM19.2Secondary osteoarthritis of other joints1 mappingM19.9Osteoarthritis, unspecified site1 mapping

M20-M25: Other Joint Disorders

58 codes with ICD-11 mappings

M20Acquired deformities of fingers and toes1 mappingM20.0Deformity of finger(s)1 mappingM20.1Hallux valgus (acquired)1 mappingM20.2Hallux rigidus1 mappingM20.3Hallux varus (acquired)1 mappingM20.4Other hammer toe(s) (acquired)1 mappingM20.5Other deformities of toe(s) (acquired)1 mappingM20.6Acquired deformities of toe(s), unspecified1 mappingM21Other acquired deformities of limbs1 mappingM21.0Valgus deformity, not elsewhere classified1 mappingM21.1Varus deformity, not elsewhere classified1 mappingM21.2Flexion deformity1 mappingM21.3Wrist or foot drop (acquired)1 mappingM21.4Flat foot [pes planus] (acquired)1 mappingM21.5Acquired clawhand, clubhand, clawfoot and clubfoot1 mappingM21.6Other acquired deformities of foot1 mappingM21.7Unequal limb length (acquired)1 mappingM21.8Other specified acquired deformities of limbs1 mappingM21.9Unspecified acquired deformity of limb and hand1 mappingM22Disorder of patella1 mappingM22.0Recurrent dislocation of patella1 mappingM22.1Recurrent subluxation of patella1 mappingM22.2Patellofemoral disorders1 mappingM22.3Other derangements of patella1 mappingM22.4Chondromalacia patellae1 mappingM22.8Other disorders of patella1 mappingM22.9Unspecified disorder of patella1 mappingM23Internal derangement of knee1 mappingM23.0Cystic meniscus1 mappingM23.2Derangement of meniscus due to old tear or injury1 mappingM23.3Other meniscus derangements1 mappingM23.4Loose body in knee1 mappingM23.5Chronic instability of knee1 mappingM23.6Other spontaneous disruption of ligament(s) of knee1 mappingM23.8Other internal derangements of knee1 mappingM23.9Unspecified internal derangement of knee1 mappingM24Other specific joint derangements1 mappingM24.0Loose body in joint1 mappingM24.1Other articular cartilage disorders1 mappingM24.2Disorder of ligament1 mappingM24.3Pathological dislocation of joint, not elsewhere classified1 mappingM24.4Recurrent dislocation of joint1 mappingM24.5Contracture of joint1 mappingM24.6Ankylosis of joint1 mappingM24.7Protrusio acetabuli1 mappingM24.8Other specific joint derangements, not elsewhere classified1 mappingM24.9Joint derangement, unspecified1 mappingM25Other joint disorder, not elsewhere classified1 mappingM25.0Hemarthrosis1 mappingM25.1Fistula of joint1 mappingM25.2Flail joint1 mappingM25.3Other instability of joint1 mappingM25.4Effusion of joint1 mappingM25.5Pain in joint1 mappingM25.6Stiffness of joint, not elsewhere classified1 mappingM25.7Osteophyte1 mappingM25.8Other specified joint disorders1 mappingM25.9Joint disorder, unspecified1 mapping

M30-M36: Systemic Connective Tissue Disorders

50 codes with ICD-11 mappings

M30Polyarteritis nodosa and related conditions1 mappingM30.0Polyarteritis nodosa1 mappingM30.1Polyarteritis with lung involvement [Churg-Strauss]1 mappingM30.2Juvenile polyarteritis1 mappingM30.3Mucocutaneous lymph node syndrome [Kawasaki]1 mappingM30.8Other conditions related to polyarteritis nodosa1 mappingM31Other necrotizing vasculopathies1 mappingM31.0Hypersensitivity angiitis1 mappingM31.1Thrombotic microangiopathy1 mappingM31.3Wegener's granulomatosis1 mappingM31.4Aortic arch syndrome [Takayasu]1 mappingM31.5Giant cell arteritis with polymyalgia rheumatica1 mappingM31.6Other giant cell arteritis1 mappingM31.7Microscopic polyangiitis1 mappingM31.8Other specified necrotizing vasculopathies1 mappingM31.9Necrotizing vasculopathy, unspecified1 mappingM32Systemic lupus erythematosus (SLE)1 mappingM32.0Drug-induced systemic lupus erythematosus1 mappingM32.1Systemic lupus erythematosus w organ or system involvement1 mappingM32.8Other forms of systemic lupus erythematosus1 mappingM32.9Systemic lupus erythematosus, unspecified1 mappingM33Dermatopolymyositis1 mappingM33.0Juvenile dermatomyositis1 mappingM33.1Other dermatomyositis1 mappingM33.2Polymyositis1 mappingM33.9Dermatopolymyositis, unspecified1 mappingM34Systemic sclerosis [scleroderma]1 mappingM34.0Progressive systemic sclerosis1 mappingM34.1CR(E)ST syndrome1 mappingM34.2Systemic sclerosis induced by drug and chemical1 mappingM34.8Other forms of systemic sclerosis1 mappingM34.9Systemic sclerosis, unspecified1 mappingM35Other systemic involvement of connective tissue1 mappingM35.0Sjogren syndrome1 mappingM35.1Other overlap syndromes1 mappingM35.2Behcet's disease1 mappingM35.3Polymyalgia rheumatica1 mappingM35.4Diffuse (eosinophilic) fasciitis1 mappingM35.5Multifocal fibrosclerosis1 mappingM35.6Relapsing panniculitis [Weber-Christian]1 mappingM35.7Hypermobility syndrome1 mappingM35.8Other specified systemic involvement of connective tissue1 mappingM35.9Systemic involvement of connective tissue, unspecified1 mappingM36Systemic disorders of conn tiss in diseases classd elswhr1 mappingM36.0Dermato(poly)myositis in neoplastic disease1 mappingM36.1Arthropathy in neoplastic disease1 mappingM36.2Hemophilic arthropathy1 mappingM36.3Arthropathy in other blood disorders1 mappingM36.4Arthropathy in hypersensitivity reactions classd elswhr1 mappingM36.8Systemic disord of conn tiss in oth diseases classd elswhr1 mapping

M40-M43: Deforming Dorsopathies

30 codes with ICD-11 mappings

M45-M49: Spondylopathies

27 codes with ICD-11 mappings

M50-M54: Other Dorsopathies

32 codes with ICD-11 mappings

M50Cervical disc disorders1 mappingM50.0Cervical disc disorder with myelopathy1 mappingM50.1Cervical disc disorder with radiculopathy1 mappingM50.2Other cervical disc displacement1 mappingM50.3Other cervical disc degeneration1 mappingM50.8Other cervical disc disorders1 mappingM50.9Cervical disc disorder, unspecified1 mappingM51Thoracic, thoracolum, and lumbosacral intvrt disc disorders1 mappingM51.0Thoracic, thrclm and lumbosacr intvrt disc disord w myelpath1 mappingM51.1Thor, thrclm & lumbosacr intvrt disc disord w radiculopathy1 mappingM51.2Oth thoracic, thrclm and lumbosacr intvrt disc displacmnt1 mappingM51.3Oth thoracic, thrclm and lumbosacr intvrt disc degeneration1 mappingM51.4Schmorl's nodes1 mappingM51.8Oth thoracic, thoracolum and lumbosacr intvrt disc disorders1 mappingM51.9Unsp thoracic, thoracolum and lumbosacr intvrt disc disorder1 mappingM53Other and unspecified dorsopathies, not elsewhere classified1 mappingM53.0Cervicocranial syndrome1 mappingM53.1Cervicobrachial syndrome1 mappingM53.2Spinal instabilities1 mappingM53.3Sacrococcygeal disorders, not elsewhere classified1 mappingM53.8Other specified dorsopathies1 mappingM53.9Dorsopathy, unspecified1 mappingM54Dorsalgia1 mappingM54.0Panniculitis affecting regions of neck and back1 mappingM54.1Radiculopathy1 mappingM54.2Cervicalgia1 mappingM54.3Sciatica1 mappingM54.4Lumbago with sciatica1 mappingM54.5Low back pain1 mappingM54.6Pain in thoracic spine1 mappingM54.8Other dorsalgia1 mappingM54.9Dorsalgia, unspecified1 mapping

M60-M63: Disorders of Muscles

25 codes with ICD-11 mappings

M65-M67: Disorders of Synovium and Tendon

20 codes with ICD-11 mappings

M70-M79: Other Soft Tissue Disorders

68 codes with ICD-11 mappings

M70Soft tissue disorders related to use, overuse and pressure1 mappingM70.0Crepitant synovitis (acute) (chronic) of hand and wrist1 mappingM70.1Bursitis of hand1 mappingM70.2Olecranon bursitis1 mappingM70.3Other bursitis of elbow1 mappingM70.4Prepatellar bursitis1 mappingM70.5Other bursitis of knee1 mappingM70.6Trochanteric bursitis1 mappingM70.7Other bursitis of hip1 mappingM70.8Oth soft tissue disorders related to use/pressure1 mappingM70.9Unsp soft tissue disorder related to use/pressure1 mappingM71Other bursopathies1 mappingM71.0Abscess of bursa1 mappingM71.1Other infective bursitis1 mappingM71.2Synovial cyst of popliteal space [Baker]1 mappingM71.3Other bursal cyst1 mappingM71.4Calcium deposit in bursa1 mappingM71.5Other bursitis, not elsewhere classified1 mappingM71.8Other specified bursopathies1 mappingM71.9Bursopathy, unspecified1 mappingM72Fibroblastic disorders1 mappingM72.0Palmar fascial fibromatosis [Dupuytren]1 mappingM72.1Knuckle pads1 mappingM72.2Plantar fascial fibromatosis1 mappingM72.4Pseudosarcomatous fibromatosis1 mappingM72.6Necrotizing fasciitis1 mappingM72.8Other fibroblastic disorders1 mappingM72.9Fibroblastic disorder, unspecified1 mappingM75Shoulder lesions1 mappingM75.0Adhesive capsulitis of shoulder1 mappingM75.1Rotator cuff tear or rupture, not specified as traumatic1 mappingM75.2Bicipital tendinitis1 mappingM75.3Calcific tendinitis of shoulder1 mappingM75.4Impingement syndrome of shoulder1 mappingM75.5Bursitis of shoulder1 mappingM75.8Other shoulder lesions1 mappingM75.9Shoulder lesion, unspecified1 mappingM76Enthesopathies, lower limb, excluding foot1 mappingM76.0Gluteal tendinitis1 mappingM76.1Psoas tendinitis1 mappingM76.2Iliac crest spur1 mappingM76.3Iliotibial band syndrome1 mappingM76.4Tibial collateral bursitis [Pellegrini-Stieda]1 mappingM76.5Patellar tendinitis1 mappingM76.6Achilles tendinitis1 mappingM76.7Peroneal tendinitis1 mappingM76.8Other specified enthesopathies of lower limb, excluding foot1 mappingM76.9Unspecified enthesopathy, lower limb, excluding foot1 mappingM77Other enthesopathies1 mappingM77.0Medial epicondylitis1 mappingM77.1Lateral epicondylitis1 mappingM77.2Periarthritis of wrist1 mappingM77.3Calcaneal spur1 mappingM77.4Metatarsalgia1 mappingM77.5Other enthesopathy of foot and ankle1 mappingM77.8Other enthesopathies, not elsewhere classified1 mappingM77.9Enthesopathy, unspecified1 mappingM79Oth and unsp soft tissue disorders, not elsewhere classified1 mappingM79.0Rheumatism, unspecified1 mappingM79.1Myalgia1 mappingM79.2Neuralgia and neuritis, unspecified1 mappingM79.3Panniculitis, unspecified1 mappingM79.4Hypertrophy of (infrapatellar) fat pad1 mappingM79.5Residual foreign body in soft tissue1 mappingM79.6Pain in limb, hand, foot, fingers and toes1 mappingM79.7Fibromyalgia1 mappingM79.8Other specified soft tissue disorders1 mappingM79.9Soft tissue disorder, unspecified1 mapping

M80-M85: Disorders of Bone Density and Structure

31 codes with ICD-11 mappings

M86-M90: Other Osteopathies

35 codes with ICD-11 mappings

M86Osteomyelitis1 mappingM86.0Acute hematogenous osteomyelitis1 mappingM86.1Other acute osteomyelitis1 mappingM86.2Subacute osteomyelitis1 mappingM86.3Chronic multifocal osteomyelitis1 mappingM86.4Chronic osteomyelitis with draining sinus1 mappingM86.5Other chronic hematogenous osteomyelitis1 mappingM86.6Other chronic osteomyelitis1 mappingM86.8Other osteomyelitis1 mappingM86.9Osteomyelitis, unspecified1 mappingM87Osteonecrosis1 mappingM87.0Idiopathic aseptic necrosis of bone1 mappingM87.1Osteonecrosis due to drugs1 mappingM87.2Osteonecrosis due to previous trauma1 mappingM87.3Other secondary osteonecrosis1 mappingM87.8Other osteonecrosis1 mappingM87.9Osteonecrosis, unspecified1 mappingM88Osteitis deformans [Paget's disease of bone]1 mappingM88.0Osteitis deformans of skull1 mappingM88.8Osteitis deformans of other bones1 mappingM88.9Osteitis deformans of unspecified bone1 mappingM89Other disorders of bone1 mappingM89.0Algoneurodystrophy1 mappingM89.1Physeal arrest1 mappingM89.2Other disorders of bone development and growth1 mappingM89.3Hypertrophy of bone1 mappingM89.4Other hypertrophic osteoarthropathy1 mappingM89.5Osteolysis1 mappingM89.6Osteopathy after poliomyelitis1 mappingM89.8Other specified disorders of bone1 mappingM89.9Disorder of bone, unspecified1 mappingM90Osteopathies in diseases classified elsewhere1 mappingM90.5Osteonecrosis in diseases classified elsewhere1 mappingM90.6Osteitis deformans in neoplastic diseases1 mappingM90.8Osteopathy in diseases classified elsewhere1 mapping

M91-M94: Chondropathies

31 codes with ICD-11 mappings

M95-M95: Other Disorders of the Musculoskeletal System

9 codes with ICD-11 mappings

M96-M96: Intraoperative and Postprocedural Complications of Musculoskeletal System

9 codes with ICD-11 mappings

M99-M99: Biomechanical Lesions

11 codes with ICD-11 mappings