ICD-10-CM > R00-R99 > R40-R46 > R43 R43 Disturbances of smell and taste Non-Billable/Non-Specific Codes R43.0AnosmiaR43.1ParosmiaR43.2ParageusiaR43.8Other disturbances of smell and tasteR43.9Unspecified disturbances of smell and taste