ICD-10-CM › C00-D49 › C81-C96 › C93 Monocytic leukemia › C93.0

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

• C93.00 Acute monoblastic/monocytic leukemia, not having achieved remission
• C93.01 Acute monoblastic/monocytic leukemia, in remission
• C93.02 Acute monoblastic/monocytic leukemia, in relapse

What has happened to this code

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from C93 Monocytic leukemia

Excludes1 - never coded here

• personal history of leukemia (Z85.6)

Includes

• monocytoid leukemia

Inherited from the C81-C96 section Malignant neoplasms of lymphoid, hematopoietic and related tissue (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)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

• Cancer > blood
• Infiltrate, infiltration > leukemic
• Infiltrate, infiltration > lymphatic
• Leukemia, leukemic > AML M5
• Leukemia, leukemic > AML M5a
• Leukemia, leukemic > AML M5b
• Schilling-type monocytic leukemia
• Leukemia, leukemic > acute monocytic
• Leukemia, leukemic > acute monoblastic

Codes in the same group

Code	Description	Status
C93.1	Chronic myelomonocytic leukemia	Not billable
C93.3	Juvenile myelomonocytic leukemia	Not billable
C93.9	Monocytic leukemia, unspecified	Not billable
C93.Z	Other monocytic leukemia	Not billable