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ICD-10 Guide
ICD-10 CodesChapter 3: Diseases of the blood and blood-forming organsD63

D63

Billable

Anemia in chronic diseases classified elsewhere

Chapter 3:Diseases of the blood and blood-forming organs

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

Code Description

ICD-10 D63 is a billable code used to indicate a diagnosis of anemia in chronic diseases classified elsewhere.

Key Diagnostic Point:

Anemia in chronic diseases classified elsewhere (D63) refers to anemia that arises as a consequence of chronic diseases, such as chronic kidney disease, malignancies, autoimmune disorders, and chronic infections. This type of anemia is typically characterized by a reduction in red blood cell production due to the underlying chronic condition, which can lead to a decrease in erythropoietin production or the presence of inflammatory cytokines that inhibit erythropoiesis. Aplastic anemia, a form of bone marrow failure, is a specific type of anemia that can also be classified under this code when it is secondary to chronic diseases. The diagnosis of anemia in chronic diseases requires careful evaluation of the patient's medical history, laboratory results, and the identification of the underlying chronic condition. Treatment often focuses on managing the primary disease while addressing the anemia, which may include iron supplementation, erythropoiesis-stimulating agents, or blood transfusions. Accurate coding is essential for proper reimbursement and to reflect the complexity of the patient's health status.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of multiple underlying chronic conditions
  • Differentiation from other types of anemia
  • Need for comprehensive patient history and lab results
  • Potential for overlapping diagnoses

Audit Risk Factors

  • Inadequate documentation linking anemia to chronic disease
  • Failure to specify the type of chronic disease
  • Misclassification of anemia type
  • Lack of supporting lab results

Specialty Focus

Medical Specialties

Hematology

Documentation Requirements

Detailed lab results, patient history, and treatment plans must be documented.

Common Clinical Scenarios

Patients with chronic kidney disease presenting with anemia, or patients with malignancies experiencing anemia due to bone marrow infiltration.

Billing Considerations

Ensure that the relationship between the chronic disease and anemia is clearly established in the documentation.

Internal Medicine

Documentation Requirements

Comprehensive assessment of chronic conditions and their impact on anemia.

Common Clinical Scenarios

Management of patients with multiple chronic diseases leading to anemia.

Billing Considerations

Documentation should reflect the complexity of managing chronic diseases and their complications.

Coding Guidelines

Inclusion Criteria

Use D63 When
  • According to ICD
  • 10 coding guidelines, D63 should be used when anemia is directly related to a chronic disease classified elsewhere
  • Coders must ensure that the primary chronic condition is also documented and coded appropriately

Exclusion Criteria

Do NOT use D63 When
No specific exclusions found.

Related CPT Codes

85025CPT Code

Complete blood count (CBC) with differential

Clinical Scenario

Used to evaluate anemia in patients with chronic diseases.

Documentation Requirements

Document the reason for the CBC and any relevant findings.

Specialty Considerations

Hematologists may require additional tests to assess the type of anemia.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of anemia related to chronic diseases, improving the accuracy of patient records and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of anemia related to chronic diseases, improving the accuracy of patient records and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

When should I use D63 instead of other anemia codes?

Use D63 when the anemia is specifically linked to a chronic disease classified elsewhere, ensuring that the chronic condition is documented in the patient's record.