ICD-10-CM 2027
ICD-10 code for epistaxis
From the official ICD-10-CM alphabetic index entry “Epistaxis (multiple)”. Page updated September 29, 2026.
About coding epistaxis
The ICD-10-CM code for epistaxis is R04.0 (Epistaxis). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R04.0.
Within R04 (hemorrhage from respiratory passages), R04.0 is specifically for epistaxis. Related codes cover hemorrhage from throat (R04.1), hemoptysis (R04.2), hemorrhage from other sites in respiratory passages (R04.8) and unspecified (R04.9).
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 150 (Epistaxis with MCC, relative weight 1.4473) and DRG 151 (Epistaxis without MCC, relative weight 0.7615), in MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific epistaxis codes (official index)
Common questions about epistaxis ICD-10 codes
What is the ICD-10 code for epistaxis?
- R04.0 — Epistaxis. More specific codes apply when the documentation supports them: I78.0, N94.89.
What is the ICD-10 code for hereditary epistaxis?
- I78.0 — Hereditary hemorrhagic telangiectasia.
What is the ICD-10 code for vicarious menstruation epistaxis?
- N94.89 — Other specified conditions associated with female genital organs and menstrual cycle.
Is R04.0 billable?
- Yes. R04.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R04.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R04.0 as a principal diagnosis.
Is R04.0 a CC or MCC?
- No. R04.0 is neither a CC nor an MCC under MS-DRG v44.0.