ICD-10-CM › R00-R99 › R40-R46 › R40.24 Glasgow coma scale, total score › R40.242
Glasgow coma scale score 9-12
Not billableICD-10-CM diagnosis code.
This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.
Submit one of these 5 more specific codes instead:
- R40.2420 Glasgow coma scale score 9-12, unspecified time
- R40.2421 Glasgow coma scale score 9-12, in the field [EMT or ambulance]
- R40.2422 Glasgow coma scale score 9-12, at arrival to emergency department
- R40.2423 Glasgow coma scale score 9-12, at hospital admission
- R40.2424 Glasgow coma scale score 9-12, 24 hours or more after hospital admission
What has happened to this code
Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2012 Added to the draft code set draft Glasgow coma scale score 9-12
- FY2017 Stopped being billable
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from R40 Somnolence, stupor and coma
Excludes1 - never coded here
- neonatal coma (P91.5)
- somnolence, stupor and coma in diabetes (E08-E13)
- somnolence, stupor and coma in hepatic failure (K72.-)
- somnolence, stupor and coma in hypoglycemia (nondiabetic) (E15)
Inherited from the R40-R46 section Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
Excludes2 - not included here
- symptoms and signs constituting part of a pattern of mental disorder (F01-F99)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Comatose
- Unconscious
- Coma > Glasgow, scale score
- Symptoms NEC > involving > awareness > coma
- Symptoms NEC > involving > cognitive functions > coma
- Glasgow coma scale > total score > 9-12
Codes in the same group
| Code | Description | Status |
|---|---|---|
| R40.241 | Glasgow coma scale score 13-15 | Not billable |
| R40.243 | Glasgow coma scale score 3-8 | Not billable |
| R40.244 | Other coma, without documented Glasgow coma scale score, or with partial score reported | Not billable |