DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

R42 diagnosis code · Billable category · FY2027

R42 Dizziness and giddiness

  • Billable
  • Not CC/MCC
  • POA reported

R42 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

ICD-10 code by name

What is the ICD-10 code for dizziness?
Dizziness ICD-10 code: R42 Dizziness and giddiness. Alphabetic Index: Dizziness → R42. Search ICD-10 for dizziness
CC / MCC
Neither
MS-DRG
149
HCC V28
–
POA
Reported
Code Editor
–
Index entries
8

Instructions

At R42

Inclusion terms

  • Light-headedness
  • Vertigo NOS

Excludes1

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

Notes that also apply

Block R40-R46 instructions (Excludes2 1): printed on the block page.

Chapter 18 instructions (Notes 9, Excludes2 4): printed on the chapter 18 page.

Index entries

  • Dizziness → R42
  • Dysequilibrium → R42
  • Giddiness → R42
  • Swimming in the head → R42
  • Vertigo → R42
  • Disturbance(s)equilibrium → R42
  • Lightheadedness → R42
  • SyndromeMal de Debarquement → R42

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for R42
CC / MCCNeither
Appendix BMDC 03 Diseases and Disorders of the Ear, Nose, Mouth and Throat, MS-DRG 149 (Dysequilibrium…)
Code Editor–
POAReported
HCC V28–

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy