ICD-10-CM 2027
ICD-10 code for Equilibrium disturbance
From the official ICD-10-CM alphabetic index entry “Disturbance (s) › equilibrium”. Page updated September 29, 2026.
About coding Equilibrium disturbance
The ICD-10-CM code for Equilibrium disturbance is R42 (Dizziness and giddiness).
Don't report R42 together with the conditions in its Excludes1 note: vertiginous syndromes (H81.-) and vertigo from infrasound (T75.23).
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 149 (Dysequilibrium, relative weight 0.7527), 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.
Don't confuse with (Excludes1 for R42)
Common questions about Equilibrium disturbance ICD-10 codes
What is the ICD-10 code for Equilibrium disturbance?
- R42 — Dizziness and giddiness.
Is R42 billable?
- Yes. R42 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R42 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R42 as a principal diagnosis.
Is R42 a CC or MCC?
- No. R42 is neither a CC nor an MCC under MS-DRG v44.0.