2027 ICD-10-CM Diagnosis Code C94Other leukemias of specified cell type
C94 is a non-billable ICD-10-CM category code for other leukemias of specified cell type, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C94.00, C94.01, C94.02, and C94.20.
Code Identity
Code Classification
Specific Coding for Other leukemias of specified cell typeOverview
Non-specific codes like C94 require more characters. Use one of these billable codes instead:
C94.0 for Acute erythroid leukemia
Use C94.00 for Acute erythroid leukemia, not having achieved remission
Use C94.01 for Acute erythroid leukemia, in remission
Use C94.02 for Acute erythroid leukemia, in relapse
C94.2 for Acute megakaryoblastic leukemia
Use C94.20 for Acute megakaryoblastic leukemia not having achieved remission
Use C94.21 for Acute megakaryoblastic leukemia, in remission
Use C94.22 for Acute megakaryoblastic leukemia, in relapse
C94.3 for Mast cell leukemia
Use C94.30 for Mast cell leukemia not having achieved remission
Use C94.31 for Mast cell leukemia, in remission
Use C94.32 for Mast cell leukemia, in relapse
C94.4 for Acute panmyelosis with myelofibrosis
Use C94.40 for Acute panmyelosis with myelofibrosis not having achieved remission
Use C94.41 for Acute panmyelosis with myelofibrosis, in remission
Use C94.42 for Acute panmyelosis with myelofibrosis, in relapse
Use C94.6 for Myelodysplastic disease, not elsewhere classified
C94.8 for Other specified leukemias
Use C94.80 for Other specified leukemias not having achieved remission
Use C94.81 for Other specified leukemias, in remission
Use C94.82 for Other specified leukemias, in relapse
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to C94: its own notes plus those printed at block C81-C96 and Chapter 2. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Notes
General instructions on how these codes are used.
- 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).
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name C94, its category, or a range that includes it.
Applicable To 2
These notes mention C94.
Excludes1 4
These codes carry an Excludes1 note naming C94: they are not reported together with it, unless the two conditions are unrelated.
Code First 3
These codes say to code first a condition named in the note, and C94 is one of the conditions named.
Patient EducationClinical
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 are the types of leukemia?
- What causes leukemia?
- Who is at risk for leukemia?
- What are the symptoms of leukemia?
- How is leukemia diagnosed?
- What are the treatments for leukemia?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code HistoryHistory
Questions About C94Overview
What is the ICD-10 code for other leukemias of specified cell type?
C94 is the ICD-10-CM category for other leukemias of specified cell type, but it is a non-billable header: claims need a more specific code from this category, listed on this page.
Is C94 (Other leukemias of specified cell type) a billable code?
No. This is a category header that groups the codes for other leukemias of specified cell type, and headers cannot be submitted on claims. Claims for other leukemias of specified cell type need a more specific code from this category, such as C94.00, C94.01, and C94.02.
Can C94 be reported with a code from C91.4?
Not as a rule. The Excludes1 note on C94 lists "leukemic reticuloendotheliosis (C91.4-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
