Search Database ICD-O-3 Code Lists

Name

Acute myeloid leukemia with minimal differentiation

ICD-O-1 Morphology

9861/3: Acute myeloid leukemia, NOS
Effective 1978 - 1991

ICD-O-2 Morphology

9869/3: FAB M0; Acute myeloblastic leukemia
Effective 1995 - 2000

ICD-O-3 Morphology

9872/3: Acute myeloid leukemia with minimal differentiation
Effective 2001 and later

Reportable

for cases diagnosed 1978 - 1991, 1995 and later

Primary Site(s)

C421
Primary site must be bone marrow (C421)

Coding Manual: Hematopoietic Coding Manual (PDF)

Abstractor Notes

If the leukemia occurs before or simultaneously with Myeloid Sarcoma (9930/3), see M3 and Module 5:PH10.

Diagnostic Confirmation

This histology can be determined by positive histology (including peripheral blood) with or without genetics and/or immunophenotyping. Review the Definitive Diagnostic Methods, Immunophenotyping and Genetics Data sections below, and the instructions in the Hematopoietic Manual for further guidance on assigning Diagnostic confirmation.

Grade

Not Applicable

Module Rule

See abstractor notes

Alternate Names

Acute myeloblastic leukemia, minimally differentiated
Acute myeloid leukemia, M0
Acute myeloid leukemia, minimal differentiation
FAB M0

Definition

Acute myeloid leukemia (AML) with minimal differentiation is an AML with no morphological or cytochemical evidence of myeloid differentiation. The myeloid nature of the blasts is demonstrated by immunological markers, which are essential for distinguishing this entity from lymphoblastic leukemia.

Definitive Diagnostic Methods

Genetic testing
Immunophenotyping

Genetics Data

FLT3
Gain of chromome 9
Loss of chromosome 5 [del(5q)] and 7 [del(7q)]
RUNX1(also called AML1)

Immunophenotyping

CD3- (no expression/negative)
CD13- (no expression/negative)
CD22- (no expression/negative)
CD33+ (expression/positive)
CD34+ (expression/positive)
CD38+ (expression/positive)
CD79a- (no expression/negative)
HLA-DR+ (expression/positive)
KIT (CD117)+ (expression/positive)
TdT+ (expression/positive)

Treatments

Chemotherapy
Hematologic Transplant and/or Endocrine Procedures

Transformations to

None

Transformations from

Same Primaries

Corresponding ICD-9 Codes

205.0 Acute myeloid leukemia

Corresponding ICD-10 Codes

C92.0 Acute myeloid leukemia

Corresponding ICD-10-CM Codes (U.S. only)

C92.0 Acute myeloblastic leukemia (effective October 01, 2015)

Signs and Symptoms

Anemia
Bone marrow failure
Easy bruising or bleeding
Fatigue
Fever
Leukocytosis
Neutropenia
Petechiae
Shortness of breath
Thrombocytopenia
Weakness
Weight loss or loss of appetite

Diagnostic Exams

CT (CAT) scan
Cytogenetic analysis
Immunophenotyping
Lumbar puncture
Peripheral blood smear
Physical exam and history
Reverse transcription-polymerase chain reaction test (RT-PCR)

Progression and Transformation

None

Epidemiology and Mortality

Age: most common in either infants or older adults
Incidence: <5% of all AML cases

Sources

Swerdlow SH, Campo E, Harris NL, Jaffe ES, Pileri SA, Stein H, Thiele J (Eds):
WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues (Revised 4th edition)
IARC: Lyon 2017
Section: Acute myeloid leukemia and related precursor neoplasms
Pages: 156-157

International Classification of Diseases for Oncology, Third Edition, Second Revision. Geneva: World Health Organization, 2020.
Section: ICD-O-3.2 (2020) Morphological Codes
Pages: http://www.iacr.com.fr/index.php?option=com_content&view=category&layout=blog&id=100&Itemid=577

National Cancer Institute
Section: General Information About Acute Myeloid Leukemia
Pages: https://www.cancer.gov/types/leukemia/hp/adult-aml-treatment-pdq
Glossary