C92.42 – Acute promyelocytic leukemia, in relapse

ICD-10-CM 2027 diagnosis code · Malignant neoplasms of lymphoid, hematopoietic and related tissue

Billable code

ICD-10-CM code C92.42

Code: C92.42 (claims format: C9242)
Description: Acute promyelocytic leukemia, in relapse
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 2. Neoplasms (C00-D49)
Block: C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue
Parent codes: C92 › C92.4

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

C92 – Myeloid leukemia

Includes:

granulocytic leukemia
myelogenous leukemia

Excludes1 (not coded here):

personal history of leukemia (Z85.6)

Code also:

, if applicable, pancytopenia (acquired) (D61.818)

C92.4 – Acute promyelocytic leukemia

Applicable to:

AML M3
AML Me with t(15;17) and variants

Block C81-C96

Excludes2 (not included here):

Kaposi's sarcoma of lymph nodes (C46.3)
secondary and unspecified neoplasm of lymph nodes (C77.-)
secondary neoplasm of bone marrow (C79.52)
secondary neoplasm of spleen (C78.89)

Related codes in C92.4

Frequently asked questions

What is ICD-10 code C92.42?

C92.42 is the ICD-10-CM code for acute promyelocytic leukemia, in relapse, in the block C81-C96 (Malignant neoplasms of lymphoid, hematopoietic and related tissue).

Is C92.42 a billable code?

Yes. C92.42 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does C92.42 belong to?

It belongs to category C92 – Myeloid leukemia.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.