Chapter XIII
Diseases of the musculoskeletal system and connective tissue
(M00-M99)

Osteopathies and chondropathies
(M80-M94)

Chondropathies
(M91-M94)

Excludes: postprocedural chondropathies ( M96.- )

M91 Juvenile osteochondrosis of hip and pelvis
[See site code at the beginning of this chapter ]
Excludes: slipped upper femoral epiphysis (nontraumatic) ( M93.0 )
M91.0 Juvenile osteochondrosis of pelvis
Osteochondrosis (juvenile) of:
· acetabulum
· iliac crest [Buchanan]
· ischiopubic synchondrosis [van Neck]
· symphisis pubis [Pierson]
M91.1 Juvenile osteochondrosis of head of femur [Legg-Calvé-Perthes]
M91.2 Coxa plana
Hip deformity due to previous juvenile osteochondrosis
M91.3 Pseudocoxalgia
M91.8 Other juvenile osteochondrosis of hip and pelvis
Juvenile osteochondrosis after reduction of congenital dislocation of hip
M91.9 Juvenile osteochondrosis of hip and pelvis, unspecified

M92 Other juvenile osteochondrosis
M92.0 Juvenile osteochondrosis of humerus
Osteochondrosis (juvenile) of:
· capitulum of humerus [Panner]
· head of humerus [Haas]
M92.1 Juvenile osteochondrosis of radius and ulna
Osteochondrosis (juvenile) of:
· lower ulna [Burns]
· radial head [Brailsford]
M92.2 Juvenile osteochondrosis of hand
Osteochondrosis (juvenile) of:
· carpal lunate [Kienböck]
· metacarpal heads [Mauclaire]
M92.3 Other juvenile osteochondrosis of upper limb
M92.4 Juvenile osteochondrosis of patella
Osteochondrosis (juvenile) of:
· primary patellar centre [Köhler]
· secondary patellar centre [Sinding-Larsen]
M92.5 Juvenile osteochondrosis of tibia and fibula
Osteochondrosis (juvenile) of:
· proximal tibia [Blount]
· tibial tubercle [Osgood-Schlatter]
Tibia vara
M92.6 Juvenile osteochondrosis of tarsus
Osteochondrosis (juvenile) of:
· calcaneum [Sever]
· os tibiale externum [Haglund]
· talus [Diaz]
· tarsal navicular [Köhler]
M92.7 Juvenile osteochondrosis of metatarsus
Osteochondrosis (juvenile) of:
· fifth metatarsus [Iselin]
· second metatarsus [Freiberg]
M92.8 Other specified juvenile osteochondrosis
Calcaneal apophysitis
M92.9 Juvenile osteochondrosis, unspecified
Apophysitis
Epiphysitis
Osteochondritis
Osteochondrosis
}
}
}
}
specified as juvenile, of unspecified site

M93 Other osteochondropathies
Excludes: osteochondrosis of spine ( M42.- )
M93.0 Slipped upper femoral epiphysis (nontraumatic)
M93.1 Kienböck's disease of adults
Adult osteochondrosis of carpal lunate
M93.2 Osteochondritis dissecans
M93.8 Other specified osteochondropathies
M93.9 Osteochondropathy, unspecified
Apophysitis
Epiphysitis
Osteochondritis
Osteochondrosis
}
}
}
}
not specified as adult or juvenile, of unspecified site

M94 Other disorders of cartilage
[See site code at the beginning of this chapter ]
M94.0 Chondrocostal junction syndrome [Tietze]
Costochondritis
M94.1 Relapsing polychondritis
M94.2 Chondromalacia
Excludes: chondromalacia patellae ( M22.4 )
M94.3 Chondrolysis
M94.8 Other specified disorders of cartilage
M94.9 Disorder of cartilage, unspecified