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I50.9

✓ Billable

Heart failure, unspecified

Diseases of the circulatory system (I00-I99)

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Also Known As

Cardiac, heart or myocardial failure NOSCongestive heart diseaseCongestive heart failure NOS

⚠️ Excludes2

direct

May be coded together if both conditions coexist

  • • fluid overload unrelated to congestive heart failure (E87.70)

⚠️ 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)

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Code Information

CodeI50.9
BillableYes
ParentI50
CategoryDiseases of the circulatory system (I00-I99)
Excludes10 rule(s)
Excludes23 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)