Chapter XIII
Diseases of the musculoskeletal system and connective tissue
(M00-M99)
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Incl.:
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Disorders affecting predominantly peripheral (limb) joints
M05.0 Felty syndrome
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Incl.:
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Rheumatoid arthritis with splenoadenomegaly and leukopenia
M05.2 Rheumatoid vasculitis
M05.3† Rheumatoid arthritis with involvement of other organs and systems
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Incl.:
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Rheumatoid:
M05.8 Other seropositive rheumatoid arthritis
M05.9 Seropositive rheumatoid arthritis, unspecified
M06.0 Seronegative rheumatoid arthritis
M06.1 Adult-onset Still disease
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Excl.:
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Still disease NOS (
M08.2)
M06.2 Rheumatoid bursitis
M06.4 Inflammatory polyarthropathy
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Excl.:
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polyarthritis NOS (
M13.0)
M06.8 Other specified rheumatoid arthritis
M06.9 Rheumatoid arthritis, unspecified
M07.0* Distal interphalangeal psoriatic arthropathy (L40.5†)
M07.4* Arthropathy in Crohn disease [regional enteritis] (K50.-†)
M07.6* Other enteropathic arthropathies
M08.0 Juvenile rheumatoid arthritis
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Incl.:
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Juvenile rheumatoid arthritis with or without rheumatoid factor
M08.1 Juvenile ankylosing spondylitis
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Excl.:
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ankylosing spondylitis in adults (
M45)
M08.2 Juvenile arthritis with systemic onset
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Incl.:
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Still disease NOS
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Excl.:
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adult-onset Still disease (
M06.1)
M08.3 Juvenile polyarthritis (seronegative)
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Incl.:
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Chronic juvenile polyarthritis
M08.4 Pauciarticular juvenile arthritis
M08.8 Other juvenile arthritis
M08.9 Juvenile arthritis, unspecified
M09.1* Juvenile arthritis in Crohn disease [regional enteritis] (K50.-†)
M09.8* Juvenile arthritis in other diseases classified elsewhere
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Incl.:
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Gouty bursitis
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Primary gout
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Urate tophus of heart† (
I43.8*)
M10.2 Drug-induced gout
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Coding-Hint
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Use additional external cause code (Chapter XX), if desired, to identify drug.
M10.3 Gout due to impairment of renal function
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Coding-Hint
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Use additional code, if desired, to identify impairment of kidney disease (
N17-N19)
M10.4 Other secondary gout
M11.0 Hydroxyapatite deposition disease
M11.1 Familial chondrocalcinosis
M11.2 Other chondrocalcinosis
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Incl.:
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Chondrocalcinosis NOS
M11.8 Other specified crystal arthropathies
M11.9 Crystal arthropathy, unspecified
M12.0 Chronic postrheumatic arthropathy [Jaccoud]
M12.1 Kaschin-Beck disease
M12.2 Villonodular synovitis (pigmented)
M12.3 Palindromic rheumatism
M12.4 Intermittent hydrarthrosis
M12.5 Traumatic arthropathy
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Excl.:
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post-traumatic arthrosis (of):
M12.8 Other specific arthropathies, not elsewhere classified
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Incl.:
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Transient arthropathy
M13.0 Polyarthritis, unspecified
M13.1 Monoarthritis, not elsewhere classified
M13.8 Other specified arthritis
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Incl.:
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Allergic arthritis
M13.9 Arthritis, unspecified
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Incl.:
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Arthropathy NOS
M14* Arthropathies in other diseases classified elsewhere
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Modifier-Hint
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Excl.:
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arthropathy in:
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neuropathic spondylopathy (
M49.4*)
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psoriatic and enteropathic arthropathies (
M07.-*)
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psoriatic and enteropathic arthropathies
M14.0* Gouty arthropathy due to enzyme defects and other inherited disorders
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Incl.:
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Gouty arthropathy in:
- Lesch-Nyhan syndrome (E79.1†)
- sickle-cell disorders (D57.-†)
M14.1* Crystal arthropathy in other metabolic disorders
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Incl.:
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Crystal arthropathy in hyperparathyroidism (
E21.-†)
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Excl.:
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diabetic neuropathic arthropathy (
M14.6*)
M14.5* Arthropathies in other endocrine, nutritional and metabolic disorders
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Incl.:
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Arthropathy in:
- acromegaly and pituitary gigantism (E22.0†)
- haemochromatosis (E83.1†)
- hypothyroidism (E00-E03†)
- thyrotoxicosis [hyperthyroidism] (E05.-†)
M14.8* Arthropathies in other specified diseases classified elsewhere
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Incl.:
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Arthropathy in: