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v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 2: NeoplasmsD46

D46

Billable

Myelodysplastic syndromes

Chapter 2:Neoplasms

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 D46 is a billable code used to indicate a diagnosis of myelodysplastic syndromes.

Key Diagnostic Point:

Myelodysplastic syndromes (MDS) are a group of hematological disorders characterized by ineffective hematopoiesis, leading to blood cell dysplasia and a risk of progression to acute myeloid leukemia (AML). MDS is classified as a neoplasm of uncertain behavior, meaning that while it is a cancerous condition, its clinical course can be unpredictable. Patients typically present with symptoms related to cytopenias, such as fatigue, pallor, and increased susceptibility to infections or bleeding. The diagnosis is confirmed through bone marrow biopsy, which reveals dysplastic changes in hematopoietic cells. MDS can arise de novo or as a secondary condition following chemotherapy or radiation therapy for other malignancies. The prognosis varies significantly based on factors such as the patient's age, the presence of specific cytogenetic abnormalities, and the overall clinical picture. Surveillance is crucial, as MDS can progress to more severe forms of blood disorders, including AML, necessitating close monitoring and potential treatment interventions, including supportive care, growth factors, or hematopoietic stem cell transplantation.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for precise documentation of cytogenetic abnormalities
  • Differentiation from other hematological disorders
  • Potential for progression to acute myeloid leukemia

Audit Risk Factors

  • Inadequate documentation of laboratory results
  • Failure to specify the type of MDS
  • Lack of follow-up documentation indicating progression or stability
  • Misclassification of MDS as a benign condition

Specialty Focus

Medical Specialties

Hematology

Documentation Requirements

Detailed reports of bone marrow biopsies, cytogenetic studies, and treatment plans.

Common Clinical Scenarios

Diagnosis and management of MDS, monitoring for progression to AML, and treatment planning.

Billing Considerations

Ensure accurate coding of specific MDS subtypes and associated complications.

Oncology

Documentation Requirements

Comprehensive treatment history, including prior malignancies and therapies.

Common Clinical Scenarios

Management of patients with secondary MDS post-chemotherapy or radiation.

Billing Considerations

Documenting the relationship between prior treatments and the development of MDS.

Coding Guidelines

Inclusion Criteria

Use D46 When
  • Follow official coding guidelines for neoplasms, ensuring accurate documentation of the diagnosis, treatment, and any associated conditions
  • Include specific details about the type of MDS and any relevant cytogenetic findings

Exclusion Criteria

Do NOT use D46 When
No specific exclusions found.

Related CPT Codes

85027CPT Code

Complete blood count (CBC) with differential

Clinical Scenario

Used to monitor blood counts in patients with MDS.

Documentation Requirements

Document the reason for the CBC and any abnormal findings.

Specialty Considerations

Hematologists should ensure that CBC results are correlated with clinical findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of MDS, improving the ability to capture the complexity of the disease and its management. This specificity aids in better tracking of patient outcomes and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of MDS, improving the ability to capture the complexity of the disease and its management. This specificity aids in better tracking of patient outcomes and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of MDS, improving the ability to capture the complexity of the disease and its management. This specificity aids in better tracking of patient outcomes and resource allocation.

Resources

Clinical References

  • •
    Myelodysplastic Syndromes Foundation

Coding & Billing References

  • •
    Myelodysplastic Syndromes Foundation

Frequently Asked Questions

What are the common symptoms of myelodysplastic syndromes?

Common symptoms include fatigue, weakness, pallor, frequent infections, and easy bruising or bleeding due to cytopenias.