ICD-10-CM 2027 diagnosis code
C92.1Chronic myeloid leukemia, BCR/ABL-positive
C92.1 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About C92.1
C92.1 is the ICD-10-CM diagnosis code for chronic myeloid leukemia, BCR/ABL-positive. It belongs to category C92 (myeloid leukemia), block C81-C96 (malignant neoplasms of lymphoid, hematopoietic and related tissue) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.
Within C92 (myeloid leukemia), C92.1 is specifically for chronic myeloid leukemia, BCR/ABL-positive. Related codes cover acute myeloblastic leukemia (C92.0), atypical chronic myeloid leukemia, BCR/ABL-negative (C92.2), myeloid sarcoma (C92.3), acute promyelocytic leukemia (C92.4), acute myelomonocytic leukemia (C92.5), acute myeloid leukemia with 11q23-abnormality (C92.6), unspecified (C92.9), acute myeloid leukemia with multilineage dysplasia (C92.A) and 1 more.
To report this condition, pick the subcode that matches the documentation: C92.10 (not having achieved remission), C92.11 (in remission) and C92.12 (in relapse).
Don't report C92.1 together with the conditions in its Excludes1 note: atypical chronic myeloid leukemia BCR/ABL-negative (C92.2-), chronic myelomonocytic leukemia (C93.1-) and chronic myeloproliferative disease (D47.1).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under C92.1
Coding notes
- Chronic myelogenous leukemia, Philadelphia chromosome (Ph1) positive
- Chronic myelogenous leukemia, t(9;22) (q34;q11)
- Chronic myelogenous leukemia with crisis of blast cells
Notes that apply from higher levels
Instructions written at a parent level also apply to C92.1.
› From C92 Myeloid leukemia
Broader instructions also apply from C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue and Chapter 2: Neoplasms.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to C92.1.
Codes whose notes reference C92.1
- D47.1Excludes1
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about C92.1
Is C92.1 billable?
- No. C92.1 is a header code. Report one of its more specific subcodes instead.