ICD-10-CM 2027
ICD-10 code for mouth dry
From the official ICD-10-CM alphabetic index entry “Dry, dryness › mouth”. Page updated September 29, 2026.
About coding mouth dry
The ICD-10-CM code for mouth dry is R68.2 (Dry mouth, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R68.2.
Within R68, choose R68.2 (Dry mouth, unspecified) only when documentation doesn't support a more specific option: hypothermia, not associated with low environmental temperature (R68.0), nonspecific symptoms peculiar to infancy (R68.1), Clubbing of fingers (R68.3) and other general symptoms and signs (R68.8).
Don't report R68.2 together with the conditions in its Excludes1 note: dry mouth due to dehydration (E86.0) and dry mouth due to Sjögren syndrome (M35.0-).
The conditions in its Excludes2 note aren't part of R68.2, but may be coded alongside it if the patient has both: salivary gland hyposecretion (K11.7).
More specific mouth dry codes (official index)
- due to dehydration E86.0 — Dehydration
Don't confuse with (Excludes1 for R68.2)
Common questions about mouth dry ICD-10 codes
What is the ICD-10 code for mouth dry?
- R68.2 — Dry mouth, unspecified. More specific codes apply when the documentation supports them: E86.0.
Is R68.2 billable?
- Yes. R68.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R68.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R68.2 as a principal diagnosis.
Is R68.2 a CC or MCC?
- No. R68.2 is neither a CC nor an MCC under MS-DRG v44.0.