R40.242 — Glasgow coma scale score 9-12
R40.242 is a non-billable header ICD-10-CM code for glasgow coma scale score 9-12. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The following appropriate 7th character is to be added to subcategory R40.24-:
- 0
- unspecified time
- 1
- in the field [EMT or ambulance]
- 2
- at arrival to emergency department
- 3
- at hospital admission
- 4
- 24 hours or more after hospital admission
Risk adjustment
R40.242 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How R40.242 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R40.242.
- Glasgow coma scale›total score›9-12
Code to one of these instead R40.242
5 child codes. Green means billable.
- R40.2420Glasgow coma scale score 9-12, unspecified time
- R40.2421Glasgow coma scale score 9-12, in the field [EMT or ambulance]
- R40.2422Glasgow coma scale score 9-12, at arrival to emergency department
- R40.2423Glasgow coma scale score 9-12, at hospital admission
- R40.2424Glasgow coma scale score 9-12, 24 hours or more after hospital admission
Related codes at this level
Codes that share R40.24. If R40.242 is not quite right, the correct code is usually one of these.
Questions about R40.242
- Is R40.242 a billable ICD-10-CM code?
- No. R40.242 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does R40.242 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46).