Emergency: 119
AMDA-IMIC

I38 Endocarditis, valve unspecified

Billable

Block: Other forms of heart disease (I30-I5A)

Includes

  • endocarditis (chronic) NOS
  • valvular incompetence NOS
  • valvular insufficiency NOS
  • valvular regurgitation NOS
  • valvular stenosis NOS
  • valvulitis (chronic) NOS

Excludes 1 (cannot be coded together)

  • congenital insufficiency of cardiac valve NOS (Q24.8)
  • congenital stenosis of cardiac valve NOS (Q24.8)
  • endocardial fibroelastosis (I42.4)
  • endocarditis specified as rheumatic (I09.1)
✓
This category is a complete, billable diagnosis code.

No additional specificity is required — submit I38 directly on claims and documentation without a subcode extension.

Last reviewed: September 2026