ICD-10-CM · Chapter 13 · M00-M99
Diseases of the musculoskeletal system and connective tissue
79 categories
Category titles are WHO ICD-10 titles for the same three characters; open a category for the ICD-10-CM codes in it.
- M00Pyogenic arthritis97 codes
- M01Direct infections of joint in infectious and parasitic diseases classified elsewhere24 codes
- M02Reactive arthropathies121 codes
- M04Periodic fever syndromes4 codes
- M05Seropositive rheumatoid arthritis211 codes
- M06Other rheumatoid arthritis101 codes
- M07Psoriatic and enteropathic arthropathies24 codes
- M08Juvenile arthritis125 codes
- M10Gout121 codes
- M11Other crystal arthropathies97 codes
- M12Other specific arthropathies169 codes
- M13Other arthritis47 codes
- M14Arthropathies in other diseases classified elsewhere48 codes
- M15Polyarthrosis7 codes
- M16Coxarthrosis [arthrosis of hip]15 codes
- M17Gonarthrosis [arthrosis of knee]11 codes
- M18Arthrosis of first carpometacarpal joint13 codes
- M19Other arthrosis52 codes
- M1AIdiopathic chronic gout, unspecified site, without tophus (tophi)242 codes
- M20Acquired deformities of fingers and toes33 codes
- M21Other acquired deformities of limbs124 codes
- M22Disorders of patella21 codes
- M23Internal derangement of knee111 codes
- M24Other specific joint derangements205 codes
- M25Other joint disorders, not elsewhere classified225 codes
- M26Unspecified anomaly of jaw size78 codes
- M27Developmental disorders of jaws16 codes
- M30Polyarteritis nodosa and related conditions5 codes
- M31Other necrotizing vasculopathies13 codes
- M32Systemic lupus erythematosus10 codes
- M33Dermatopolymyositis19 codes
- M34Systemic sclerosis8 codes
- M35Other systemic involvement of connective tissue23 codes
- M36Systemic disorders of connective tissue in diseases classified elsewhere6 codes
- M40Kyphosis and lordosis31 codes
- M41Scoliosis55 codes
- M42Spinal osteochondrosis21 codes
- M43Other deforming dorsopathies50 codes
- M45Ankylosing spondylitis20 codes
- M46Other inflammatory spondylopathies70 codes
- M47Spondylosis45 codes
- M48Other spondylopathies119 codes
- M49Spondylopathies in diseases classified elsewhere10 codes
- M50Cervical disc disorders42 codes
- M51Other intervertebral disc disorders36 codes
- M53Other dorsopathies, not elsewhere classified22 codes
- M54Dorsalgia33 codes
- M60Myositis111 codes
- M61Calcification and ossification of muscle154 codes
- M62Other disorders of muscle131 codes
- M63Disorders of muscle in diseases classified elsewhere24 codes
- M65Synovitis and tenosynovitis133 codes
- M66Spontaneous rupture of synovium and tendon103 codes
- M67Other disorders of synovium and tendon140 codes
- M70Soft tissue disorders related to use, overuse and pressure75 codes
- M71Other bursopathies138 codes
- M72Fibroblastic disorders7 codes
- M75Shoulder lesions30 codes
- M76Enthesopathies of lower limb, excluding foot34 codes
- M77Other enthesopathies20 codes
- M79Other soft tissue disorders, not elsewhere classified52 codes
- M80Osteoporosis with pathological fracture324 codes
- M81Osteoporosis without pathological fracture3 codes
- M83Adult osteomalacia8 codes
- M84Disorders of continuity of bone928 codes
- M85Other disorders of bone density and structure169 codes
- M86Osteomyelitis179 codes
- M87Osteonecrosis217 codes
- M88Paget disease of bone [osteitis deformans]26 codes
- M89Other disorders of bone222 codes
- M90Osteopathies in diseases classified elsewhere72 codes
- M91Juvenile osteochondrosis of hip and pelvis19 codes
- M92Other juvenile osteochondrosis48 codes
- M93Other osteochondropathies105 codes
- M94Other disorders of cartilage40 codes
- M95Other acquired deformities of musculoskeletal system and connective tissue10 codes
- M96Postprocedural musculoskeletal disorders, not elsewhere classified36 codes
- M97Periprosthetic fracture around internal prosthetic right hip joint, initial encounter36 codes
- M99Biomechanical lesions, not elsewhere classified91 codes
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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