ICD-10-CM 2027
ICD-10 code for leukemia screening
Z12.89
Encounter for screening for malignant neoplasm of other sites
✓ Billable / specificNot a principal dx
From the official ICD-10-CM alphabetic index entry “Screening (for) › leukemia”. Page updated September 29, 2026.
About coding leukemia screening
The ICD-10-CM code for leukemia screening is Z12.89 (Encounter for screening for malignant neoplasm of other sites).
Within Z12.8, choose Z12.89 (other sites) only when documentation doesn't support a more specific option: oral cavity (Z12.81), nervous system (Z12.82) and skin (Z12.83).
Use an additional code to identify any family history of malignant neoplasm (Z80.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about leukemia screening ICD-10 codes
What is the ICD-10 code for leukemia screening?
- Z12.89 — Encounter for screening for malignant neoplasm of other sites.
Is Z12.89 billable?
- Yes. Z12.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z12.89 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z12.89 a CC or MCC?
- No. Z12.89 is neither a CC nor an MCC under MS-DRG v44.0.