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v1.0.0
ICD-10 Guide
ICD-10 CodesD46.4

D46.4

Billable

Refractory anemia, unspecified

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

Code Description

ICD-10 D46.4 is a billable code used to indicate a diagnosis of refractory anemia, unspecified.

Key Diagnostic Point:

Refractory anemia is a type of anemia that does not respond to standard treatments and is characterized by a persistent low red blood cell count. It is often associated with underlying bone marrow disorders, particularly myelodysplastic syndromes (MDS). Patients with refractory anemia may experience symptoms such as fatigue, weakness, pallor, and increased susceptibility to infections. The condition is classified under neoplasms of uncertain behavior, indicating that while it is not classified as malignant, it has the potential for progression to more severe forms of hematological malignancies. Surveillance is crucial for these patients, as the risk of transformation into acute myeloid leukemia (AML) or other serious conditions necessitates regular monitoring of blood counts and bone marrow status. The unspecified nature of this code indicates that further specification regarding the type or cause of the refractory anemia is not provided, which can complicate treatment and management strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Unspecified nature of the condition can lead to ambiguity in coding.
  • Requires understanding of related hematological disorders.
  • Potential for progression to more severe conditions necessitates careful documentation.
  • Need for regular surveillance and monitoring complicates coding.

Audit Risk Factors

  • Inadequate documentation of the patient's clinical status.
  • Failure to document the rationale for the unspecified designation.
  • Lack of follow-up notes indicating ongoing surveillance.
  • Misclassification of the anemia type.

Specialty Focus

Medical Specialties

Hematology

Documentation Requirements

Detailed blood work results, bone marrow biopsy reports, and treatment history.

Common Clinical Scenarios

Patients presenting with persistent anemia despite treatment, requiring evaluation for underlying causes.

Billing Considerations

Documentation must clearly indicate the refractory nature of the anemia and any associated conditions.

Oncology

Documentation Requirements

Comprehensive cancer history, treatment plans, and monitoring protocols.

Common Clinical Scenarios

Patients with a history of myelodysplastic syndromes being monitored for progression.

Billing Considerations

Oncologists must document the potential for transformation into acute leukemia.

Coding Guidelines

Inclusion Criteria

Use D46.4 When
  • According to ICD
  • 10 guidelines, D46
  • 4 should be used when the specific type of refractory anemia is not documented
  • Coders should ensure that the documentation supports the diagnosis and that the condition is not better classified under a more specific code

Exclusion Criteria

Do NOT use D46.4 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

85025CPT Code

Complete blood count (CBC) with differential

Clinical Scenario

Used to monitor hemoglobin levels and overall blood health in patients with refractory anemia.

Documentation Requirements

Must include results of the CBC and any relevant clinical findings.

Specialty Considerations

Hematologists should ensure that the CBC is interpreted in the context of the patient's history.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of hematological conditions, improving the ability to track and manage diseases like refractory anemia. However, the unspecified nature of D46.4 can lead to challenges in accurately capturing the patient's clinical picture.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of hematological conditions, improving the ability to track and manage diseases like refractory anemia. However, the unspecified nature of D46.4 can lead to challenges in accurately capturing the patient's clinical picture.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of hematological conditions, improving the ability to track and manage diseases like refractory anemia. However, the unspecified nature of D46.4 can lead to challenges in accurately capturing the patient's clinical picture.

Resources

Clinical References

  • •
    American Society of Hematology

Coding & Billing References

  • •
    American Society of Hematology

Frequently Asked Questions

What is the difference between refractory anemia and other types of anemia?

Refractory anemia is characterized by a lack of response to standard treatments, often indicating an underlying bone marrow disorder, whereas other types of anemia may respond to treatment such as iron supplementation or vitamin B12 injections.