M81.8 vs N99.520
M81.8 (Other osteoporosis without current pathological fracture) compared with N99.520 (Hemorrhage of incontinent external stoma of urinary tract), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. N99.520 carries an Excludes2 note covering M81.8: “postoophorectomy osteoporosis without current pathological fracture (M81.8)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| M81.8Other osteoporosis without current pathological fracture | N99.520Hemorrhage of incontinent external stoma of urinary tract | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Other osteoporosis without current pathological fracture is a billable ICD-10-CM diagnosis code (M81.8). | Hemorrhage of incontinent external stoma of urinary tract is a billable ICD-10-CM diagnosis code (N99.520). |
| Includes | Drug-induced osteoporosis without current pathological fracture Idiopathic osteoporosis without current pathological fracture Osteoporosis of disuse without current pathological fracture Postoophorectomy osteoporosis without current pathological fracture | — |
| Use additional code | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) code to identify: major osseous defect, if applicable (M89.7-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources