B45.3 vs M90
B45.3 (Osseous cryptococcosis) compared with M90 (Osteopathies in diseases classified elsewhere), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. M90 carries an Excludes1 note covering B45.3: “cryptococcosis (B45.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| B45.3Osseous cryptococcosis | M90Osteopathies in diseases classified elsewhere | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | A00-B99 — Certain Infectious and Parasitic Diseases (A00-B99) | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) |
| Definition | Osseous cryptococcosis is a billable ICD-10-CM diagnosis code (B45.3). | Osteopathies in diseases classified elsewhere is a non-billable ICD-10-CM category code (M90). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources