ICD10BillableValid for clinical use

ICD-10 Code D75.9: Disease of blood and blood-forming organs, unspecified

D75.9 is a billable ICD-10 diagnosis code used to classify Disease of blood and blood-forming organs, unspecified 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 disease of blood and blood-forming organs, unspecified 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
D70-D77Other disorders of blood and blood-forming organs
category
D75Other and unspecified diseases of blood and blood-forming organs
currentD75

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

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
D75.9

Common synonyms

Disease of blood and blood-forming organs, unspecifiedDisease of blood and blood-forming organs

Frequently asked questions

Code details

CodeD75.9
SystemICD10
Display nameDisease of blood and blood-forming organs, unspecified
ChapterDiseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
BlockOther disorders of blood and blood-forming organs

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
ArthropathyBloodBloodBlood-forming organs, diseaseCytopeniaDisease, diseasedDisease, diseasedDisease, diseasedDisease, diseasedDisorder(of)Disorder(of)Disorder(of)

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 D75.9 for Disease of blood and blood-forming organs, unspecified | HealthAssure