Q79.9
Congenital malformation of musculoskeletal system, unspecified
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 8 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 1 never code together
Instructional notes 2
Q79.9code
Inclusion terms
- Congenital anomaly of musculoskeletal system NOS
- Congenital deformity of musculoskeletal system NOS
Index entries leading here 9
- Development
- abnormal, bone Q79.9
- Agenesis
- Anomaly, anomalous (congenital) (unspecified type) Q89.9
- Rudimentary (congenital) — see also Agenesis
- bone Q79.9
- Elongated, elongation (congenital) — see also Distortion
- bone Q79.9
- Malformation (congenital) — see also Anomaly
- Deformity Q89.9
- Hypoplasia, hypoplastic
- bone NOS Q79.9
- Fusion, fused (congenital)
- ossicles Q79.9
Alongside this code 8 same parent — Q79
Q79.0 Congenital diaphragmatic hernia Q79.1 Other congenital malformations of diaphragm Q79.2 Exomphalos Q79.3 Gastroschisis Q79.4 Prune belly syndrome Q79.5 Other congenital malformations of abdominal wall category Q79.6 Ehlers-Danlos syndromes category Q79.8 Other congenital malformations of musculoskeletal system
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.