Skip to content
Dx

ICD-10-CM 2027 diagnosis code

R40.244Other coma, without documented Glasgow coma scale score, or with partial score reported

Not billable — use a more specific codeRequires 7th character

R40.244 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it and add the required 7th character.Short description: Oth coma,w/o Glasgow coma scale score,or w/part score report

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R40.244

R40.244 is the ICD-10-CM diagnosis code for other coma, without documented Glasgow coma scale score, or with partial score reported. It belongs to category R40 (Somnolence, stupor and coma), block R40-R46 (symptoms and signs involving cognition, perception, emotional state and behavior) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

Within R40.24, choose R40.244 (Other coma, without documented Glasgow coma scale score, or with partial score reported) only when documentation doesn't support a more specific option: Glasgow coma scale score 13-15 (R40.241), Glasgow coma scale score 9-12 (R40.242) and Glasgow coma scale score 3-8 (R40.243).

Codes in this range require a 7th character: 0 for unspecified time, 1 for in the field [EMT or ambulance], 2 for at arrival to emergency department, 3 for at hospital admission and 4 for 24 hours or more after hospital admission. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (expanded into subcodes).

7th character

The following appropriate 7th character is to be added to subcategory R40.24-:

Notes that apply from higher levels

Instructions written at a parent level also apply to R40.244.

› From R40.24 Glasgow coma scale, total score
Note
  • Assign a code from subcategory R40.24, when only the total coma score is documented
› From R40.2 Coma
Note
  • One code from each subcategory, R40.21-R40.23, is required to complete the coma scale
Code first
  • any associated:
  • fracture of skull (S02.-)
  • intracranial injury (S06.-)
› From R40 Somnolence, stupor and coma
Excludes1
  • 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)

Broader instructions also apply from R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior and Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to R40.244.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2017 (effective 10/1/2016): Expanded — no longer billable

Common questions about R40.244

Is R40.244 billable?

No. R40.244 is a header code. Report one of its more specific subcodes instead.