Q78 Other osteochondrodysplasias

Category / Non-billable header 9 subcodes

Block: Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)

Excludes 2 (not included here)

  • congenital myotonic chondrodystrophy (G71.13)

Subcodes

Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.

Code Description Billable
Q78..0 Osteogenesis imperfecta Yes
Q78..1 Polyostotic fibrous dysplasia Yes
Q78..2 Osteopetrosis Yes
Q78..3 Progressive diaphyseal dysplasia Yes
Q78..4 Enchondromatosis Yes
Q78..5 Metaphyseal dysplasia Yes
Q78..6 Multiple congenital exostoses Yes
Q78..8 Other specified osteochondrodysplasias Yes
Q78..9 Osteochondrodysplasia, unspecified Yes

Last reviewed: September 2026