D48 vs Q85.0
D48 (Neoplasm of uncertain behavior of other and unspecified sites) compared with Q85.0 (Neurofibromatosis (nonmalignant)), 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. D48 carries an Excludes1 note covering Q85.0: “neurofibromatosis (nonmalignant) (Q85.0-)”
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
| D48Neoplasm of uncertain behavior of other and unspecified sites | Q85.0Neurofibromatosis (nonmalignant) | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Neoplasm of uncertain behavior of other and unspecified sites is a non-billable ICD-10-CM category code (D48). | Neurofibromatosis (nonmalignant) is a non-billable ICD-10-CM category code (Q85.0). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources