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I51.7

✓ Billable

Cardiomegaly

Diseases of the circulatory system (I00-I99)

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Also Known As

Cardiac dilatationCardiac hypertrophyVentricular dilatation

❌ Excludes1

direct

Cannot be coded with I51.7

  • • cardiomegaly due to hypertension (I11.-)
  • • cardiomegaly due to hypertension and chronic kidney disease (I13.-)

⚠️ Excludes2

inherited from I51

Rules from parent category I51: Complications and ill-defined descriptions of heart disease

  • • heart disease specified as rheumatic (I00-I09)

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Code Information

CodeI51.7
BillableYes
ParentI51
CategoryDiseases of the circulatory system (I00-I99)
Excludes12 rule(s)
Excludes21 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)