ICD-10-CM 2027
ICD-10 code for tricuspid sclerosis
From the official ICD-10-CM alphabetic index entry “Sclerosis, sclerotic › tricuspid (heart) (valve)”. Page updated September 29, 2026.
About coding tricuspid sclerosis
The ICD-10-CM code for tricuspid sclerosis is I07.8 (Other rheumatic tricuspid valve diseases).
Within I07, choose I07.8 (Other rheumatic tricuspid valve diseases) only when documentation doesn't support a more specific option: rheumatic tricuspid stenosis (I07.0), rheumatic tricuspid insufficiency (I07.1), rheumatic tricuspid stenosis and insufficiency (I07.2) and rheumatic tricuspid valve disease, unspecified (I07.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 306 (Cardiac Congenital and Valvular Disorders with MCC, relative weight 1.546) and DRG 307 (Cardiac Congenital and Valvular Disorders without MCC, relative weight 0.9148), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about tricuspid sclerosis ICD-10 codes
What is the ICD-10 code for tricuspid sclerosis?
- I07.8 — Other rheumatic tricuspid valve diseases.
Is I07.8 billable?
- Yes. I07.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I07.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I07.8 as a principal diagnosis.
Is I07.8 a CC or MCC?
- No. I07.8 is neither a CC nor an MCC under MS-DRG v44.0.