| Full description | Other osteoporosis with current pathological fracture, unspecified ankle and foot, subsequent encounter for fracture with nonunion |
| Billable | Yes |
| Chapter | Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99) |
| Section | Disorders of bone density and structure (M80-M85) |
| Parent code | M80.879 — Oth osteopor w current pathological fracture, unsp ank/ft |