---
title: "ICD-10-CM E11.42: Type 2 diabetes mellitus with diabetic… | BillingBrief"
description: "E11.42 is type 2 diabetes with damage to many nerves (polyneuropathy), including diabetic neuralgia. If the record specifies autonomic neuropathy, use…"
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language: "en"
---

# E11.42 Type 2 diabetes mellitus with diabetic polyneuropathy

ICD-10-CM · [CMS code reference](#source)

E11.42 is type 2 diabetes with damage to many nerves (polyneuropathy), including diabetic neuralgia. If the record specifies autonomic neuropathy, use E11.43; for a single nerve, E11.41.

## What to know

-   Diabetic neuralgia with type 2 diabetes is listed under E11.42.

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Also covers

-   Type 2 diabetes mellitus with diabetic neuralgia

### Includes

-   diabetes (mellitus) due to insulin secretory defect
-   diabetes NOS
-   insulin resistant diabetes (mellitus)

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   diabetes mellitus due to underlying condition (E08.-)
-   drug or chemical induced diabetes mellitus (E09.-)
-   gestational diabetes (O24.4-)
-   neonatal diabetes mellitus (P70.2)
-   postpancreatectomy diabetes mellitus (E13.-)
-   postprocedural diabetes mellitus (E13.-)
-   secondary diabetes mellitus NEC (E13.-)
-   type 1 diabetes mellitus (E10.-)

### Use additional code

Add a second code for the following, when documented.

-   code to identify control using:
-   injectable non-insulin antidiabetic drugs ([Z79.85](https://billingbrief.com/icd10/z79.85/))
-   insulin ([Z79.4](https://billingbrief.com/icd10/z79.4/))
-   oral antidiabetic drugs ([Z79.84](https://billingbrief.com/icd10/z79.84/))
-   oral hypoglycemic drugs ([Z79.84](https://billingbrief.com/icd10/z79.84/))

## Related codes

-   [`E11.37X9` Type 2 diabetes mellitus with diabetic macular edema, resolved following treatment… ICD-10-CM](https://billingbrief.com/icd10/e11.37x9/)
-   [`E11.39` Type 2 diabetes mellitus with other diabetic ophthalmic complication ICD-10-CM](https://billingbrief.com/icd10/e11.39/)
-   [`E11.40` Type 2 diabetes mellitus with diabetic neuropathy, unspecified ICD-10-CM](https://billingbrief.com/icd10/e11.40/)
-   [`E11.41` Type 2 diabetes mellitus with diabetic mononeuropathy ICD-10-CM](https://billingbrief.com/icd10/e11.41/)
-   [`E11.43` Type 2 diabetes mellitus with diabetic autonomic (poly)neuropathy ICD-10-CM](https://billingbrief.com/icd10/e11.43/)
-   [`E11.44` Type 2 diabetes mellitus with diabetic amyotrophy ICD-10-CM](https://billingbrief.com/icd10/e11.44/)
-   [`E11.49` Type 2 diabetes mellitus with other diabetic neurological complication ICD-10-CM](https://billingbrief.com/icd10/e11.49/)
-   [`E11.51` Type 2 diabetes mellitus with diabetic peripheral angiopathy without gangrene ICD-10-CM](https://billingbrief.com/icd10/e11.51/)

## Common questions

### What's the difference between E11.42 and E11.40?

E11.42 is for documented diabetic polyneuropathy or diabetic neuralgia. E11.40 is for diabetic neuropathy when the record doesn't say which type.

### Is E11.42 a billable code?

Yes. E11.42 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

E11 Type 2 diabetes mellitus

Chapter

Endocrine, nutritional and metabolic diseases

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).