M91.11 Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], right leg

Instructional Notes:

M91.11
Description: Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], right leg
↓
M91.1
Description: Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]
↓
M91
Description: Juvenile osteochondrosis of hip and pelvis
Exclude1:
- slipped upper femoral epiphysis (nontraumatic) (M93.0-)
↓
M91-M94
Description: Chondropathies (M91-M94)
Exclude1:
- postprocedural chondropathies (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