C88 vs Z85.79
C88 (Malignant immunoproliferative diseases and certain other B-cell lymphomas) compared with Z85.79 (Personal history of other malignant neoplasms of lymphoid, hematopoietic and related 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. C88 carries an Excludes1 note covering Z85.79: “personal history of other malignant neoplasms of lymphoid, hematopoietic and related tissues (Z85.79)”
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
| C88Malignant immunoproliferative diseases and certain other B-cell lymphomas | Z85.79Personal history of other malignant neoplasms of lymphoid, hematopoietic and related tissues | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | C00-D49 — Neoplasms (C00-D49) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Malignant immunoproliferative diseases and certain other B-cell lymphomas is a non-billable ICD-10-CM category code (C88). | Personal history of other malignant neoplasms of lymphoid, hematopoietic and related tissues is a billable ICD-10-CM diagnosis code (Z85.79). |
| Includes | — | Conditions classifiable to C88-C90, C96 |
| Use additional code | — | code to identify: alcohol use and dependence (F10.-) exposure to environmental tobacco smoke (Z77.22) |
| Code first | — | any follow-up examination after treatment of malignant neoplasm (Z08) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources