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ICD-10 Code D59.13: Mixed type autoimmune hemolytic anemia

D59.13 is a billable ICD-10 diagnosis code used to classify Mixed type autoimmune hemolytic anemia in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89).

When is it used?

  • May be used when a clinician documents mixed type autoimmune hemolytic anemia in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
3Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
block
D55-D59Hemolytic anemias
category
D59Acquired hemolytic anemia
category
D59.1Other autoimmune hemolytic anemias
currentD59.1

Official coding notes

Inclusion terms
  • Mixed type autoimmune hemolytic disease
  • Mixed type, cold and warm, (primary) (secondary) (symptomatic) autoimmune hemolytic anemia

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

HematologistGeneral Physician

Coding guidelines

Common synonyms

Mixed type autoimmune hemolytic anemia

Frequently asked questions

Code details

CodeD59.13
SystemICD10
Display nameMixed type autoimmune hemolytic anemia
ChapterDiseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
BlockHemolytic anemias

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)Disease, diseasedDisease, diseased

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code D59.13 for Mixed type autoimmune hemolytic anemia | HealthAssure