E15 — Nondiabetic hypoglycemic coma
E15 is a billable, specific ICD-10-CM code for nondiabetic hypoglycemic coma. It is valid for submission on a claim.
Includes
Conditions this code covers.
- drug-induced insulin coma in nondiabetic
- hyperinsulinism with hypoglycemic coma
- hypoglycemic coma NOS
Other codes that can never be billed with E15
These codes carry an Excludes1 note pointing at E15. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E15 alone.
- R40Somnolence, stupor and coma
Risk adjustment
E15 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.
Medicare coverage
E15 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56612Billing and Coding: CT of the Head
- A56686Billing and Coding: HbA1c
- A57361Billing and Coding: Monitored Anesthesia Care
How E15 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 E15.
- Hypoglycemia›coma
- Shock›insulin
- Coma›hypoglycemic›nondiabetic
- Hyperinsulinism›with›coma(hypoglycemic)
- Hypoglycemia›drug-induced›with coma(nondiabetic)
- Hypoglycemia›due to insulin›with coma(nondiabetic)
- Hypoglycemia›iatrogenic›with coma(nondiabetic)
- Reaction›hypoglycemic, due to insulin›with coma›nondiabetic
Questions about E15
- Is E15 a billable ICD-10-CM code?
- Yes. E15 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E15 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Other disorders of glucose regulation and pancreatic internal secretion (E15-E16).