ICD-10-CM 2027
ICD-10 code for epidemic vertigo
From the official ICD-10-CM alphabetic index entry “Vertigo › epidemic”. Page updated September 29, 2026.
About coding epidemic vertigo
The ICD-10-CM code for epidemic vertigo is A88.1 (Epidemic vertigo).
Within A88 (other viral infections of central nervous system, not elsewhere classified), A88.1 is specifically for epidemic vertigo. Related codes cover enteroviral exanthematous fever [Boston exanthem] (A88.0) and other specified viral infections of central nervous system (A88.8).
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 091 (Other Disorders of Nervous System with MCC, relative weight 1.7046), DRG 092 (Other Disorders of Nervous System with CC, relative weight 1.0239) and DRG 093 (Other Disorders of Nervous System without CC/MCC, relative weight 0.7783), in MDC 01 (Diseases and Disorders of the Nervous 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.
More specific epidemic vertigo codes (official index)
- Dix and Hallpike
- Pedersen's
- vestibular neuronitis
Common questions about epidemic vertigo ICD-10 codes
What is the ICD-10 code for epidemic vertigo?
- A88.1 — Epidemic vertigo.
Is A88.1 billable?
- Yes. A88.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A88.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A88.1 as a principal diagnosis.
Is A88.1 a CC or MCC?
- No. A88.1 is neither a CC nor an MCC under MS-DRG v44.0.