Is C91.Z2 a billable code?
Yes. C91.Z2 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.
ICD-10-CM FY2027 diagnosis code
C91.Z2: Other lymphoid leukemia, in relapse
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
C91.Z2 is a billable ICD-10-CM diagnosis code for other lymphoid leukemia, in relapse. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with C91.Z2 already added.Good Faith EstimateStart a cost estimate with C91.Z2 already added.CMS-1500 Claim FormFill a claim form with C91.Z2 in box 21.
Other codes in C91.Z Other lymphoid leukemia
C91.Z2 questions
What does C91.Z2 mean?
C91.Z2 is the ICD-10-CM code for Other lymphoid leukemia, in relapse. It is in chapter 2, Neoplasms (C00-D49).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.