ICD-10-CM · Chapter 9 · I00-I99
I52 Other heart disorders in diseases classified elsewhere
Excludes 1 (cannot be coded together)
- heart disease (in):
- gonococcal infection (A54.83)
- meningococcal infection (A39.50)
- rheumatoid arthritis (M05.31)
- syphilis (A52.06)
Code First
- underlying disease, such as:
- congenital syphilis (A50.5)
- mucopolysaccharidosis (E76.3)
- schistosomiasis (B65.0-B65.9)
This category is a complete, billable diagnosis code.
No additional specificity is required — submit I52 directly on claims and documentation without a subcode extension.
Last reviewed: September 2026