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I50.3

⚠ Non-billable (Header)

Diastolic (congestive) heart failure

Diseases of the circulatory system (I00-I99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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Also Known As

Diastolic left ventricular heart failureHeart failure with normal ejection fractionHeart failure with preserved ejection fraction [HFpEF]

❌ Excludes1

direct

Cannot be coded with I50.3

  • • combined systolic (congestive) and diastolic (congestive) heart failure (I50.4-)

⚠️ Excludes2

inherited from I50

Rules from parent category I50: Heart failure

  • • cardiac arrest (I46.-)
  • • neonatal cardiac failure (P29.0)

📋 Code Instructions

from I50
  • • Code first: heart failure complicating abortion or ectopic or molar pregnancy (O00-O07, O08.8)
  • • Code first: heart failure due to hypertension (I11.0)
  • • Code first: heart failure due to hypertension with chronic kidney disease (I13.-)
  • • Code first: heart failure following surgery (I97.13-)
  • • Code first: obstetric surgery and procedures (O75.4)
  • • Code first: rheumatic heart failure (I09.81)

Child Codes (4)

I50.30Unspecified diastolic (congestive) heart failureI50.31Acute diastolic (congestive) heart failureI50.32Chronic diastolic (congestive) heart failureI50.33Acute on chronic diastolic (congestive) heart failure

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Code Information

CodeI50.3
BillableNo — Header code
ParentI50
CategoryDiseases of the circulatory system (I00-I99)
Excludes11 rule(s)
Excludes22 note(s)
Child codes4

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)