ICD-10 Code C92.Z2 – Other myeloid leukemia, in relapse (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C92.Z2 – Other myeloid leukemia, in relapse
What it is
This code identifies a myeloid leukemia that has returned after remission or prior response. Use it when the record specifies relapse and the leukemia does not fit a more specific myeloid leukemia code.
Clinical signs
Clinical features vary; refer to documentation. Relapse is usually supported by evidence of recurrent leukemia after a prior remission, often noted in hematology, pathology, or oncology records.
When to use this code
Use this code when the provider documents recurrent or relapsed other myeloid leukemia. It is appropriate for encounters focused on active disease after prior treatment response. If the chart does not clearly state relapse, check documentation before assigning this code.
Do not use for
Do not use it for newly diagnosed myeloid leukemia, remission status without relapse, or a more specific leukemia subtype that has its own code. Check documentation if the disease phase is unclear.
Coding tip
Confirm both the leukemia type and the word “relapse” in the current encounter note before coding C92.Z2.