ICD-10-CM 2027
ICD-10 code for Brugada syndrome
From the official ICD-10-CM alphabetic index entry “Syndrome › Brugada”. Page updated September 29, 2026.
About coding Brugada syndrome
The ICD-10-CM code for Brugada syndrome is I49.81 (Brugada syndrome).
Within I49.8 (other specified cardiac arrhythmias), I49.81 is specifically for Brugada syndrome. Related codes cover ventricular bigeminy (I49.82) and not elsewhere classified (I49.89).
Code first cardiac arrhythmia complicating: abortion or ectopic or molar pregnancy (O00-O07, O08.8) and obstetric surgery and procedures (O75.4).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about Brugada syndrome ICD-10 codes
What is the ICD-10 code for Brugada syndrome?
- I49.81 — Brugada syndrome.
Is I49.81 billable?
- Yes. I49.81 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I49.81 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I49.81 as a principal diagnosis.
Is I49.81 a CC or MCC?
- No. I49.81 is neither a CC nor an MCC under MS-DRG v44.0.