M1A.2691 Drug-induced chronic gout, unspecified knee, with tophus
Instructional Notes:
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M1A.2691
Description: Drug-induced chronic gout, unspecified knee, with tophus
↓
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M1A.269
Description: Drug-induced chronic gout, unspecified knee
↓
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M1A.26
Description: Drug-induced chronic gout, knee
↓
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M1A.2
Description: Drug-induced chronic gout
Use Additional Code:
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
↓
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M1A
Description: Chronic gout
Exclude1:
Exclude2:
Use Additional Code:
- code to identify:
- Autonomic neuropathy in diseases classified elsewhere (G99.0)
- Calculus of urinary tract in diseases classified elsewhere (N22)
- Cardiomyopathy in diseases classified elsewhere (I43)
- Disorders of external ear in diseases classified elsewhere (H61.1-, H62.8-)
- Disorders of iris and ciliary body in diseases classified elsewhere (H22)
- Glomerular disorders in diseases classified elsewhere (N08)
↓
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M05-M14
Description: Inflammatory polyarthropathies (M05-M14)
↓
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M00-M99
Description: Diseases of the musculoskeletal system and connective tissue
Exclude2:
- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Notes:
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition