ICD-10-CM › C00-D49 › C81-C96 › C94 Other leukemias of specified cell type › C94.3

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:

• C94.30 Mast cell leukemia not having achieved remission
• C94.31 Mast cell leukemia, in remission
• C94.32 Mast cell 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 C94 Other leukemias of specified cell type

Excludes1 - never coded here

• leukemic reticuloendotheliosis (C91.4-)
• myelodysplastic syndromes (D46.-)
• personal history of leukemia (Z85.6)
• plasma cell leukemia (C90.1-)

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
• Mast cell > leukemia
• Leukemia, leukemic > mast cell

Codes in the same group

Code	Description	Status
C94.0	Acute erythroid leukemia	Not billable
C94.2	Acute megakaryoblastic leukemia	Not billable
C94.4	Acute panmyelosis with myelofibrosis	Not billable
C94.6	Myelodysplastic disease, not elsewhere classified	Valid
C94.8	Other specified leukemias	Not billable