2026 ICD-10-CM Diagnosis Code C94.02Acute erythroid leukemia, in relapse

ICD-10-CM Codes›C00–D49›C81-C96›C94

ICD-10-CM C94.02
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

C94.02 is a billable ICD-10-CM diagnosis code for acute erythroid leukemia, in relapse. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 820 through 822, 834 through 839. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Leukemia - acute myeloid leukemia (AML).

Code Identity

ICD-10-CM Code
C94.02
Billable Status
Yes — Valid for Submission
Code Describes
Acute erythroid leukemia, in relapse
Short Description
Acute erythroid leukemia, in relapse
Same as the full description in the CMS dataset.
Parent Code
C94.0
Acute erythroid leukemia

Code Classification

ChapterC00–D49Neoplasms
SectionC81-C96Malignant neoplasms of lymphoid, hematopoietic and related tissue
CategoryC94Other leukemias of specified cell type
This CodeC94.02Acute erythroid leukemia, in relapse

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO060
Leukemia - acute myeloid leukemia (AML)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Acute Myeloid Leukemia

Leukemia is a term for cancers of the blood cells. Leukemia starts in blood-forming tissues such as the bone marrow. Your bone marrow makes the cells which will develop into white blood cells, red blood cells, and platelets. Each type of cell has a different job:

The full article covers:

  • What is leukemia?
  • What is acute myeloid leukemia (AML)?
  • What causes acute myeloid leukemia (AML)?
  • Who is at risk for acute myeloid leukemia (AML)?
  • What are the symptoms of acute myeloid leukemia (AML)?
  • How is acute myeloid leukemia (AML) diagnosed?
  • What are the treatments for acute myeloid leukemia (AML)?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert C94.02 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
207.02 Ac erth/erylk in relapse
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About C94.02Overview

Is C94.02 (Acute erythroid leukemia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report acute erythroid leukemia, in relapse on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does C94.02 group to?

When acute erythroid leukemia, in relapse is the principal diagnosis on an inpatient stay, it groups to MS-DRG 820, 821, 822, 834, 835, 836, 837, 838, 839, with relative weights from 1.2040 to 5.8648 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of C94.02?

Under the General Equivalence Mappings, acute erythroid leukemia, in relapse converts to ICD-9-CM 207.02 (ac erth/erylk in relapse). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.