C92.1 vs C92.2
C92.1 (Chronic myeloid leukemia, BCR/ABL-positive) compared with C92.2 (Atypical chronic myeloid leukemia, BCR/ABL-negative), 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. C92.1 carries an Excludes1 note covering C92.2: “atypical chronic myeloid leukemia BCR/ABL-negative (C92.2-)”
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
| C92.1Chronic myeloid leukemia, BCR/ABL-positive | C92.2Atypical chronic myeloid leukemia, BCR/ABL-negative | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Chronic myeloid leukemia, BCR/ABL-positive is a non-billable ICD-10-CM category code (C92.1). | Atypical chronic myeloid leukemia, BCR/ABL-negative is a non-billable ICD-10-CM category code (C92.2). |
| Includes | granulocytic leukemia myelogenous leukemia Chronic myelogenous leukemia, Philadelphia chromosome (Ph1) positive Chronic myelogenous leukemia, t(9;22) (q34;q11) | granulocytic leukemia myelogenous leukemia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources