M91.1 Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]

Non-billable header with 3 child codes.

Applies from M91 Juvenile osteochondrosis of hip and pelvis

Excludes1 (never code together)

• slipped upper femoral epiphysis (nontraumatic) (M93.0-)

Codes under M91.1

• M91.10 Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], unspecified leg
• M91.11 Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], right leg
• M91.12 Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes], left leg

Code annotations containing back-references to M91.1

Back-references to M91

• Type 1 Excludes: M87 Osteonecrosis ("juvenile osteonecrosis (M91-M92)")
• Type 1 Excludes: M87 Osteonecrosis ("osteochondropathies (M90-M93)")

Diagnosis Index entries for M91.1

• Legg (-Calvé)-Perthes disease, syndrome or osteochondrosis

Nearby codes

• M91 Juvenile osteochondrosis of hip and pelvis
• M91.0 Juvenile osteochondrosis of pelvis
• M91.1 Juvenile osteochondrosis of head of femur [Legg-Calve-Perthes] (this code)
• M91.10 Juvenile osteochondrosis of head of femur [Legg-Calve-Perthes], unspecified leg
• M91.11 Juvenile osteochondrosis of head of femur [Legg-Calve-Perthes], right leg
• M91.12 Juvenile osteochondrosis of head of femur [Legg-Calve-Perthes], left leg
• M91.2 Coxa plana
• M91.20 Coxa plana, unspecified hip