ICD-10-CM Codes
C00-D49
C81-C96
C94-
2023 ICD-10-CM Diagnosis Code C94

2023 ICD-10-CM Diagnosis Code C94

Other leukemias of specified cell type

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

C94 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM C94 became effective on October 1, 2022.
This is the American ICD-10-CM version of C94 - other international versions of ICD-10 C94 may differ.

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as C94. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

leukemic reticuloendotheliosis (
ICD-10-CM Diagnosis Code C91.4
Hairy cell leukemia
Applicable To
- Leukemic reticuloendotheliosis
C91.4-
)
myelodysplastic syndromes (
ICD-10-CM Diagnosis Code D46
- D46 Myelodysplastic syndromes
  - D46.0 Refractory anemia without ring sideroblasts, ...
  - D46.1 Refractory anemia with ring sideroblasts
  - D46.2 Refractory anemia with excess of blasts [RAEB...
    - D46.20 Refractory anemia with excess of blasts, unsp...
    - D46.21 Refractory anemia with excess of blasts 1
    - D46.22 Refractory anemia with excess of blasts 2
  - D46.A Refractory cytopenia with multilineage dyspla...
  - D46.B Refractory cytopenia with multilineage dyspla...
  - D46.C Myelodysplastic syndrome with isolated del(5q...
  - D46.4 Refractory anemia, unspecified
  - D46.Z Other myelodysplastic syndromes
  - D46.9 Myelodysplastic syndrome, unspecified
D46.-
)
personal history of leukemia (
ICD-10-CM Diagnosis Code Z85.6
Personal history of leukemia
Applicable To
- Conditions classifiable to C91-C95
Type 1 Excludes
- leukemia in remission C91.0-C95.9 with 5th character 1
Z85.6
)
plasma cell leukemia (
ICD-10-CM Diagnosis Code C90.1
Plasma cell leukemia
Applicable To
- Plasmacytic leukemia
C90.1-
)

The following code(s) above C94 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to C94:

C00-D49
2023 ICD-10-CM Range C00-D49
Neoplasms
Note
- Functional activity
- All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- Morphology [Histology]
- Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- Primary malignant neoplasms overlapping site boundaries
- A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- Malignant neoplasm of ectopic tissue
- Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
Neoplasms
C81-C96
2023 ICD-10-CM Range C81-C96
Malignant neoplasms of lymphoid, hematopoietic and related tissue
Type 2 Excludes
- 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)
Malignant neoplasms of lymphoid, hematopoietic and related tissue

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to C94:

Type 1 Excludes: D72.825

ICD-10-CM Diagnosis Code D72.825
Bandemia
Applicable To
- Bandemia without diagnosis of specific infection
Type 1 Excludes
- confirmed infection - code to infection
- leukemia (C91.-, C92.-, C93.-, C94.-, C95.-)

ICD-10-CM Codes Adjacent To C94

C93.31 …… in remission

C93.32 …… in relapse

C93.Z Other monocytic leukemia

C93.Z0 …… not having achieved remission

C93.Z1 …… in remission

C93.Z2 …… in relapse

C93.9 Monocytic leukemia, unspecified

C93.90 …… not having achieved remission

C93.91 …… in remission

C93.92 …… in relapse

C94 Other leukemias of specified cell type

C94.0 Acute erythroid leukemia

C94.00 …… not having achieved remission

C94.01 …… in remission

C94.02 …… in relapse

C94.2 Acute megakaryoblastic leukemia

C94.20 …… not having achieved remission

C94.21 …… in remission

C94.22 …… in relapse

C94.3 Mast cell leukemia

C94.30 …… not having achieved remission

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code C94

Other leukemias of specified cell type

Hairy cell leukemia

Personal history of leukemia

Plasma cell leukemia

Neoplasms

Malignant neoplasms of lymphoid, hematopoietic and related tissue

Bandemia