ICD-10-CM diagnosis code
R40.2413 Glasgow coma scale score 13-15, at hospital admission
- Billable
- Yes, a complete code (FY2026)
- Category
- R40 Somnolence, stupor and coma
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Other codes in R40
101 complete codes in this category.
- R40.2362Coma scale, best motor response, obeys commands, at arrival to emergency department
- R40.2363Coma scale, best motor response, obeys commands, at hospital admission
- R40.2364Coma scale, best motor response, obeys commands, 24 hours or more after hospital admission
- R40.2410Glasgow coma scale score 13-15, unspecified time
- R40.2411Glasgow coma scale score 13-15, in the field [EMT or ambulance]
- R40.2412Glasgow coma scale score 13-15, at arrival to emergency department
- R40.2413Glasgow coma scale score 13-15, at hospital admission
- R40.2414Glasgow coma scale score 13-15, 24 hours or more after hospital admission
- 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
Documentation tips
- Make sure the note supports every element of the title, “Glasgow coma scale score 13-15, at hospital admission”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to R40.
The international WHO ICD-10 also has R40, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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