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ICD-10 Guide
DiagnosesAnemia In Esrd

Anemia In Esrd

ICD-10 Coding for Anemia in End-Stage Renal Disease (ESRD)(N18.6, D63.1, Z99.2)

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

Diagnosis Overview

What is Anemia In Esrd?
Essential facts and insights about Anemia in End-Stage Renal Disease (ESRD)

Key Clinical Considerations:

  • Presence of fatigue, weakness, pallor, and shortness of breath.
  • Laboratory findings include low hemoglobin levels (typically < 12 g/dL in women and < 13 g/dL in men) and low hematocrit.
  • Physical examination may reveal signs of pallor, tachycardia, and hypotension.
  • Imaging or procedural findings are generally not applicable for anemia but may include ultrasound or CT scans to assess kidney structure.
  • Severity criteria include classification of anemia as mild, moderate, or severe based on hemoglobin levels.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Document the patient's hemoglobin and hematocrit levels, along with any relevant symptoms.
  • Use specific terminology such as 'anemia due to chronic kidney disease' or 'anemia in ESRD'.
  • Examples include: 'Patient presents with anemia secondary to ESRD, hemoglobin 10 g/dL'.
  • Medical necessity documentation should include the rationale for anemia treatment in the context of ESRD.
  • Quality measures may require documentation of hemoglobin levels and treatment response.

Coding Guidelines

Usage Guidelines & Examples

  • Use N18.6 for patients with ESRD who have documented anemia.
  • Do not use this code for patients with anemia due to other causes, such as iron deficiency or malignancy.
  • Compare with D63.1 for anemia due to chronic kidney disease without ESRD.
  • Common errors include coding anemia without confirming the underlying cause or failing to document severity.
  • In complex cases, ensure to document all contributing factors to support the selected code.

Code Exclusions

Important Exclusions

  • Exclude anemia due to iron deficiency (D50) or vitamin deficiency (D51).
  • Alternative codes for excluded conditions include D50.9 for unspecified iron deficiency anemia.
  • Conditions are excluded to ensure accurate representation of the underlying cause of anemia.
  • Common mistakes include misclassifying anemia types without proper documentation.
  • Related but distinct conditions include anemia of chronic disease and aplastic anemia.

Related ICD-10 Codes

Primary Codes
N18.6
End-stage renal disease
D63.1
Anemia in chronic kidney disease
Ancillary Codes
Z99.2
Differential Codes
N18.5
N18.5
if the patient is not on dialysis.
D64.9
D64.9
when anemia is due to CKD.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Nephrology

Specialty Applications

  • Patients diagnosed with end-stage renal disease (ESRD).
  • Commonly affects adults, particularly those over 65, and individuals with diabetes or hypertension.
  • Clinical settings include nephrology clinics, dialysis centers, and hospitals.
  • Specialty-specific applications in nephrology and hematology.
  • Treatment contexts include management of anemia in patients undergoing dialysis.

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 in ESRD based on hemoglobin of [value] g/dL.'

Template 2

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

Template 3

Template: 'Diagnostic criteria met as evidenced by hemoglobin < 12 g/dL.'

Template 4

Template: 'Treatment plan initiated for anemia with erythropoietin therapy.'

Template 5

Template: 'Follow-up care for anemia in ESRD 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 hemoglobin levels, symptoms, and treatment rationale.

How does this differ from similar diagnoses?

Anemia in ESRD is specifically related to kidney failure, unlike other anemia types.

What are common billing considerations?

Ensure accurate coding to reflect the severity and cause of anemia for reimbursement.

What procedures are typically associated?

CPT codes for erythropoiesis-stimulating agents and iron supplementation.

Are there any quality reporting implications?

Monitor hemoglobin levels and treatment outcomes for quality measures.