R42

ICD-10Billable

Dizziness and giddiness

Official ICD-10-CM descriptor (FY2026)

Dizziness and giddiness

R42 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Light-headedness
Vertigo NOS

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

vertiginous syndromes (H81.-)
vertigo from infrasound (T75.23)

Where this code sits

Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.