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ICD-10 Guide
DiagnosesAnemia Due To Chemotherapy

Anemia Due To Chemotherapy

ICD-10 Coding for Anemia Due to Chemotherapy(D64.81)

PRIMARY SPECIALTYOncology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Anemia Due To Chemotherapy?
Essential facts and insights about Anemia Due to Chemotherapy

Key Clinical Considerations:

  • Patients may present with fatigue, weakness, pallor, and shortness of breath.
  • Laboratory findings typically include low hemoglobin levels (less than 12 g/dL for women and less than 13.5 g/dL for men) and low hematocrit.
  • Physical examination may reveal signs of anemia such as pale conjunctiva and tachycardia.
  • Imaging studies are generally not required for diagnosis but may be used to rule out other causes of anemia.
  • Severity is often classified based on hemoglobin levels: mild (10-11.9 g/dL), moderate (8-9.9 g/dL), and severe (less than 8 g/dL).

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document the patient's chemotherapy regimen and duration, as well as any relevant medical history.
  • Use specific terminology such as 'chemotherapy-induced anemia' and include the ICD-10 code D64.81.
  • Examples include: 'Patient presents with anemia secondary to chemotherapy, with hemoglobin at 10.5 g/dL.'
  • Medical necessity must be established, indicating that the anemia is a direct result of chemotherapy treatment.
  • Quality measures may include monitoring hemoglobin levels and documenting treatment response.

Coding Guidelines

Usage Guidelines & Examples

  • Use D64.81 when the anemia is directly attributed to chemotherapy, particularly in oncology settings.
  • Do not use this code for anemia due to other causes such as iron deficiency or chronic disease.
  • Related codes include D50.9 (iron deficiency anemia, unspecified) and D63.8 (anemia in chronic diseases).
  • Common errors include misclassifying the cause of anemia; ensure the chemotherapy link is clearly documented.
  • In complex cases, consider additional codes for underlying conditions or complications.

Code Exclusions

Important Exclusions

  • Exclude anemia due to nutritional deficiencies (e.g., vitamin B12 or folate deficiency).
  • Alternative codes for excluded conditions include D50.0 (nutritional iron deficiency anemia).
  • Conditions are excluded because they have distinct etiologies and treatment protocols.
  • Common mistakes include failing to document the chemotherapy link, leading to incorrect coding.
  • Related but distinct conditions include aplastic anemia and hemolytic anemia.

Related ICD-10 Codes

Primary Codes
D64.81
Anemia due to chemotherapy
D50.9
Iron deficiency anemia, unspecified
Ancillary Codes
T45.1X5-
D64.81
to indicate the adverse effect of chemotherapy.
Differential Codes
D63.0

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Oncology

Specialty Applications

  • This diagnosis applies to patients undergoing chemotherapy for various cancers.
  • Patient populations include adults and children receiving cancer treatment, with varying risk factors based on the type of chemotherapy.
  • Clinical settings include outpatient oncology clinics, inpatient hospital settings, and emergency departments.
  • Specialty-specific applications are primarily in oncology, hematology, and palliative care.
  • Treatment contexts include management of anemia during and after chemotherapy cycles.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Template: 'Patient diagnosed with anemia due to chemotherapy based on hemoglobin levels of [value].'

Template 2

Template: 'Clinical presentation consistent with chemotherapy-induced anemia including fatigue and pallor.'

Template 3

Template: 'Diagnostic criteria met as evidenced by hemoglobin of [value] and chemotherapy history.'

Template 4

Template: 'Treatment plan initiated for anemia due to chemotherapy with [interventions].'

Template 5

Template: 'Follow-up care for anemia due to chemotherapy including monitoring hemoglobin levels.'

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

What documentation is required for this diagnosis?

Document chemotherapy regimen, hemoglobin levels, and clinical symptoms.

How does this differ from similar diagnoses?

Differentiated by the direct link to chemotherapy as the causative factor.

What are common billing considerations?

Ensure documentation supports medical necessity and includes treatment details.

What procedures are typically associated?

Related CPT codes may include blood transfusions and erythropoiesis-stimulating agents.

Are there any quality reporting implications?

Monitor hemoglobin levels and document treatment efficacy for quality measures.