DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

R43 Disturbances of smell and taste

  • Header · not billable

R43 is not billable. The category heads 5 billable codes in FY2027: the 5 codes directly below it.

Index → code

Where it sits

  1. Chapter 18 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
  2. R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
  3. R43 Disturbances of smell and taste
Billable codes
5
Subdivisions
5
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
18

Codes in R43

  1. R43.0
    Anosmia
    Billable
  2. R43.1
    Parosmia
    Billable
  3. R43.2
    Parageusia
    Billable
  4. R43.8
    Other disturbances of smell and taste
    Billable
    Inclusion terms 1

    Inclusion terms

    • Mixed disturbance of smell and taste
  5. R43.9
    Unspecified disturbances of smell and taste
    Billable

Sources of each column.

Instructions

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

  • Anosmia → R43.0
  • Hyperosmia → R43.1
  • Parosmia → R43.1
  • Ageusia → R43.2
  • Dysgeusia → R43.2
  • Parageusia → R43.2
  • Disorder (of)sense of smell → R43.1
  • Disturbance(s)olfactory nerve → R43.1
  • Perversion, pervertedsense of smell and taste → R43.8
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECsmell → R43.9
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECtaste → R43.9
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECsmellanosmia → R43.0
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECsmellparosmia → R43.1
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECtasteparageusia → R43.2
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECsmelland taste (mixed) → R43.8
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECsmellspecified NEC → R43.8
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECtasteand smell (mixed) → R43.8
  • Disturbance(s)sensation (cold) (heat) (localization) (tactile discrimination) (texture) (vibratory) NECtastespecified NEC → R43.8

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

Hierarchy