N64.52 vs R89
N64.52 (Nipple discharge) compared with R89 (Abnormal findings in specimens from other organs, systems and tissues), 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. N64.52 carries an Excludes1 note covering R89: “abnormal findings in nipple discharge (R89.-)”
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
| N64.52Nipple discharge | R89Abnormal findings in specimens from other organs, systems and tissues | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | R00-R99 — Symptoms, Signs and Abnormal Clinical and Laboratory Findings, Not Elsewhere Classified (R00-R99) |
| Definition | Nipple discharge is a billable ICD-10-CM diagnosis code (N64.52). | Abnormal findings in specimens from other organs, systems and tissues is a non-billable ICD-10-CM category code (R89). |
| Includes | — | abnormal findings in nipple discharge abnormal findings in synovial fluid abnormal findings in wound secretions |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources