E15 — Nondiabetic hypoglycemic coma
Is E15 billable?
Yes — E15 is billable for FY2027. E15 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. E15 may be submitted for encounters from October 1, 2026 through September 30, 2027.
E15 at a glance
| Code | E15 |
|---|---|
| Description | Nondiabetic hypoglycemic coma |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does E15 group to?
E15 sits in MDC 10 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 640Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCCmedical
- 641Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCCmedical
As a secondary diagnosis, E15 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG. It also carries Hospital-Acquired Condition category 09.
How is E15 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to E15. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Hypoglycemia › coma (spontaneous)
- Shock › insulin
- Coma › hypoglycemic › nondiabetic
- Hyperinsulinism › with › coma (functional)
- Hypoglycemia › drug-induced › with coma (spontaneous)
- Hypoglycemia › due to insulin › with coma (spontaneous)
- Hypoglycemia › iatrogenic › with coma (spontaneous)
- Reaction › hypoglycemic, due to insulin › with coma › nondiabetic
Includes
Conditions classified to E15.
- drug-induced insulin coma in nondiabetic
- hyperinsulinism with hypoglycemic coma
- hypoglycemic coma NOS
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E15 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- transitory endocrine and metabolic disorders specific to newborn (P70-P74)
How long has E15 existed?
E15 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with E15?
ICD-10-CM declares these codes mutually exclusive with E15 — exactly one of each pair can be correct for a given encounter.