Q77Osteochondrodysplasia with defects of growth of tubular bones and spine

Q77 is the ICD-10-CM diagnosis code for osteochondrodysplasia with defects of growth of tubular bones and spine. It belongs to block Q65-Q79 (congenital malformations and deformations of the musculoskeletal system) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Q77.0 (Achondrogenesis), Q77.1 (stature), Q77.2 (syndrome), Q77.3 (punctata), Q77.4 (Achondroplasia), Q77.5 (dysplasia), Q77.6 (dysplasia), Q77.7 (dysplasia) and 2 more.

Don't report Q77 together with the conditions in its Excludes1 note: mucopolysaccharidosis (E76.0-E76.3).

The conditions in its Excludes2 note aren't part of Q77, but may be coded alongside it if the patient has both: congenital myotonic chondrodystrophy (G71.13).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.