Nonrheumatic tricuspid valve disorders
In Other forms of heart disease (I30-I5A), chapter 9: Diseases of the Circulatory System
5 billable codes under I36: none are a CC or MCC; none map to an HCC.
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Instructional notes
Excludes1: not coded here, use a different code
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Covers hypertension with heart and kidney disease, coronary artery disease with angina, perioperative stroke, cerebrovascular sequelae, and acute myocardial infarction types and timing.
- Hypertension (page 50)
- Atherosclerotic Coronary Artery Disease and Angina (page 52)
- Intraoperative and Postprocedural Cerebrovascular Accident (page 53)
- Sequelae of Cerebrovascular Disease (page 53)
- Acute myocardial infarction (AMI) (page 54)
All codes under I36
I36 can't be used on a claim. Pick a billable code below; grey headings group them.
I36 MS-DRGs
As the principal diagnosis, all 5 billable codes under I36 group to MS-DRG 306 or 307 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
Other codes that refer to I36
Notes on these codes point to I36.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Heart Valve Diseases
Heart valve disease happens when one or more of your heart valves don't work well. Your heart has four valves: the tricuspid, pulmonary, mitral, and aortic valves. The valves have flaps that open and close. The flaps make sure that blood flows in the right direction through your heart and to the rest of your body. When your heart beats, the flaps open to let blood through. Between heartbeats they close to stop the blood from flowing backwards.
Read more about heart valve diseases on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.