E16.2 — Hypoglycemia, unspecified
E16.2 is a billable, specific ICD-10-CM code for hypoglycemia, unspecified. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Use additional code
Add a secondary code to capture the detail described below.
- code for hypoglycemia level, if applicable (E16.A-)
Other codes that can never be billed with E16.2
These codes carry an Excludes1 note pointing at E16.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E16.2 alone.
Risk adjustment
E16.2 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
E16.2 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57361Billing and Coding: Monitored Anesthesia Care
How E16.2 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 E16.2.
- Glycopenia
- Hypoglycemia(spontaneous)
- McQuarrie's syndrome(idiopathic familial hypoglycemia)
- Decrease›glucose
- Encephalopathy›hypoglycemic
- Syndrome›hypoglycemic(familial) (neonatal)
- Syndrome›McQuarrie's
- Decrease›blood›glucose
- Findings, abnormal, inconclusive, without diagnosis›blood sugar›low(transient)
- Polyneuropathy›in›hypoglycemia
- Sugar›blood›low(transient)
Related codes at this level
Codes that share E16. If E16.2 is not quite right, the correct code is usually one of these.
Questions about E16.2
- Is E16.2 a billable ICD-10-CM code?
- Yes. E16.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E16.2 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).
- What cannot be coded together with E16.2?
- E16.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.