ICD-10-CM 2027
ICD-10 code for Trigeminy
From the official ICD-10-CM alphabetic index entry “Trigeminy”. Page updated September 29, 2026.
About coding Trigeminy
The ICD-10-CM code for Trigeminy is R00.8 (Other abnormalities of heart beat).
Within R00, choose R00.8 (Other abnormalities of heart beat) only when documentation doesn't support a more specific option: tachycardia, unspecified (R00.0), bradycardia, unspecified (R00.1), Palpitations (R00.2) and unspecified abnormalities of heart beat (R00.9).
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 314 (Other Circulatory System Diagnoses with MCC, relative weight 2.0873), DRG 315 (Other Circulatory System Diagnoses with CC, relative weight 0.9508) and DRG 316 (Other Circulatory System Diagnoses without CC/MCC, relative weight 0.6677), 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 Trigeminy ICD-10 codes
What is the ICD-10 code for Trigeminy?
- R00.8 — Other abnormalities of heart beat.
Is R00.8 billable?
- Yes. R00.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R00.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R00.8 as a principal diagnosis.
Is R00.8 a CC or MCC?
- No. R00.8 is neither a CC nor an MCC under MS-DRG v44.0.