E10.40 — Type 1 diabetes mellitus with diabetic neuropathy, unspecified
E10.40 is a billable, specific ICD-10-CM code for type 1 diabetes mellitus with diabetic neuropathy, unspecified. It is valid for submission on a claim.
Excludes1 inherited from the categories above E10.40
These are not written on E10.40, but they bind it: a note on a category applies to every code beneath it. Billing E10.40 with anything listed here is a denial.
Written on E10 — Type 1 diabetes mellitus
- diabetes mellitus due to underlying condition (E08.-)
- drug or chemical induced diabetes mellitus (E09.-)
- gestational diabetes (O24.4-)
- hyperglycemia NOS (R73.9)
- neonatal diabetes mellitus (P70.2)
- postpancreatectomy diabetes mellitus (E13.-)
- postprocedural diabetes mellitus (E13.-)
- secondary diabetes mellitus NEC (E13.-)
- type 2 diabetes mellitus (E11.-)
Other codes that can never be billed with E10.40
These codes carry an Excludes1 note pointing at E10.40. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E10.40 alone.
Risk adjustment
E10.40 risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:
- HCC 37 Diabetes with Chronic Complications0.166 RAF
- HCC 37 Diabetes with Chronic Complications0.166 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
E10.40 is named in 41 Medicare coverage policies — 38 listing it as supporting medical necessity, and 3 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56731Billing and Coding: Nerve Blocks and Electrostimulation for Peripheral Neuropathynot covered
- A57589Billing and Coding: Nerve Blocks for Peripheral Neuropathynot covered
- A57663Billing and Coding: Nerve Blocks for Peripheral Neuropathynot covered
- A52464Glucose Monitor - Policy Article
How E10.40 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 E10.40.
- Diabetes, diabetic›type 1›with›neuropathy
Code history
E10.40 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share E10.4. If E10.40 is not quite right, the correct code is usually one of these.
- E10.41Type 1 diabetes mellitus with diabetic mononeuropathy
- E10.42Type 1 diabetes mellitus with diabetic polyneuropathy
- E10.43Type 1 diabetes mellitus with diabetic autonomic (poly)neuropathy
- E10.44Type 1 diabetes mellitus with diabetic amyotrophy
- E10.49Type 1 diabetes mellitus with other diabetic neurological complication
Questions about E10.40
- Is E10.40 a billable ICD-10-CM code?
- Yes. E10.40 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does E10.40 sit in the tabular list?
- Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).
- What cannot be coded together with E10.40?
- E10.40 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above E10.40 (E10) and apply to it just the same.