2027 ICD-10-CM Diagnosis Code C93Monocytic leukemia
C93 is a non-billable ICD-10-CM category code for monocytic leukemia, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C93.00, C93.01, C93.02, and C93.10.
Code Identity
Code Classification
Specific Coding for Monocytic leukemiaOverview
Non-specific codes like C93 require more characters. Use one of these billable codes instead:
C93.0 for Acute monoblastic/monocytic leukemia
Use C93.00 for Acute monoblastic/monocytic leukemia, not having achieved remission
Use C93.01 for Acute monoblastic/monocytic leukemia, in remission
Use C93.02 for Acute monoblastic/monocytic leukemia, in relapse
C93.1 for Chronic myelomonocytic leukemia
Use C93.10 for Chronic myelomonocytic leukemia not having achieved remission
Use C93.11 for Chronic myelomonocytic leukemia, in remission
Use C93.12 for Chronic myelomonocytic leukemia, in relapse
C93.3 for Juvenile myelomonocytic leukemia
Use C93.30 for Juvenile myelomonocytic leukemia, not having achieved remission
Use C93.31 for Juvenile myelomonocytic leukemia, in remission
Use C93.32 for Juvenile myelomonocytic leukemia, in relapse
C93.9 for Monocytic leukemia, unspecified
Use C93.90 for Monocytic leukemia, unspecified, not having achieved remission
Use C93.91 for Monocytic leukemia, unspecified in remission
Use C93.92 for Monocytic leukemia, unspecified in relapse
C93.Z for Other monocytic leukemia
Use C93.Z0 for Other monocytic leukemia, not having achieved remission
Use C93.Z1 for Other monocytic leukemia, in remission
Use C93.Z2 for Other monocytic leukemia, in relapse
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to C93: 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.
- personal history of leukemia (Z85.6)
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 C93, its category, or a range that includes it.
Applicable To 2
These notes mention C93.
Excludes1 4
These codes carry an Excludes1 note naming C93: 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 C93 is one of the conditions named.
Clinical InformationClinical
Acute Monocytic Leukemia
an acute myeloid leukemia in which the majority of monocytic cells are promonocytes. (who, 2001)
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.
Code HistoryHistory
Questions About C93Overview
What is the ICD-10 code for monocytic leukemia?
C93 is the ICD-10-CM category for monocytic leukemia, but it is a non-billable header: claims need a more specific code from this category, listed on this page.
Is C93 (Monocytic leukemia) a billable code?
No. This is a category header that groups the codes for monocytic leukemia, and headers cannot be submitted on claims. Claims for monocytic leukemia need a more specific code from this category, such as C93.00, C93.01, and C93.02.
Can C93 be reported with Z85.6?
Not as a rule. The Excludes1 note on C93 lists "personal history of leukemia (Z85.6)". 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).
