R40.2A
Nontraumatic coma due to underlying condition
- Release
- FY 2027
- Effective
Hierarchy
Where R40.2A sits in the official hierarchy. Each level is the code it is classified under.
- R40 Somnolence, stupor and coma
- R40.2 Parent Coma
- R40.2A This code Nontraumatic coma due to underlying condition
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Inclusion Terms
Secondary coma
Excludes1
somnolence, stupor and coma in diabetes (E08-E13)
Inherited from R40 — Somnolence, stupor and coma
Excludes1
coma scale, best motor response (R40.24.-)
Excludes1
somnolence, stupor and coma in hepatic failure ( K72 .-)
Inherited from R40 — Somnolence, stupor and coma
Excludes1
coma scale, best verbal response (R40.22.-)
Excludes1
somnolence, stupor and coma in hypoglycemia (nondiabetic) ( E15 )
Inherited from R40 — Somnolence, stupor and coma
Excludes1
coma scale, eyes open (R40.21.-)
Excludes1
Glasgow coma scale, total score (R40.23.-)
Version History
How R40.2A appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentNontraumatic coma due to underlying condition
-
FY 2026 Effective
UnchangedNontraumatic coma due to underlying condition
Related Codes
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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