M90.579 Osteonecrosis in diseases classified elsewhere, unspecified ankle and foot
Instructional Notes:
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M90.579
Description: Osteonecrosis in diseases classified elsewhere, unspecified ankle and foot
↓
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M90.57
Description: Osteonecrosis in diseases classified elsewhere, ankle and foot
↓
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M90.5
Description: Osteonecrosis in diseases classified elsewhere
Code First:
- underlying disease, such as:
- caisson disease (T70.3)
- hemoglobinopathy (D50-D64)
↓
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M90
Description: Osteopathies in diseases classified elsewhere
Exclude1:
- osteochondritis, osteomyelitis, and osteopathy (in):
- cryptococcosis (B45.3)
- diabetes mellitus (E08-E13 with .69-)
- gonococcal (A54.43)
- neurogenic syphilis (A52.11)
- renal osteodystrophy (N25.0)
- salmonellosis (A02.24)
- secondary syphilis (A51.46)
- syphilis (late) (A52.77)
↓
-
M86-M90
Description: Other osteopathies (M86-M90)
Exclude1:
- postprocedural osteopathies (M96.-)
↓
-
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