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ICD-10-CM 2027 diagnosis code

E10.331Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema

Not billable — use a more specific codeRequires 7th character

E10.331 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it and add the required 7th character.Short description: Type 1 diab w moderate nonprlf diab rtnop w macular edema

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About E10.331

E10.331 is the ICD-10-CM diagnosis code for type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema. It belongs to category E10 (type 1 diabetes mellitus), block E08-E13 (diabetes mellitus) and chapter 4 (endocrine, nutritional and metabolic diseases). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within E10.33 (type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy), E10.331 is specifically for type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema. Related codes cover without macular edema (E10.339).

Codes in this range require a 7th character: 1 for right eye, 2 for left eye, 3 for bilateral and 9 for unspecified eye. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (expanded into subcodes).

7th character

One of the following 7th characters is to be assigned to codes in subcategory E10.33 to designate laterality of the disease:

Notes that apply from higher levels

Instructions written at a parent level also apply to E10.331.

› From E10 Type 1 diabetes mellitus
Includes
  • brittle diabetes (mellitus)
  • diabetes (mellitus) due to autoimmune process
  • diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction
  • idiopathic diabetes (mellitus)
  • juvenile onset diabetes (mellitus)
  • ketosis-prone diabetes (mellitus)
Excludes1
  • 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.-)

Broader instructions also apply from Chapter 4: Endocrine, nutritional and metabolic diseases.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to E10.331.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2017 (effective 10/1/2016): Expanded — no longer billable

Common questions about E10.331

Is E10.331 billable?

No. E10.331 is a header code. Report one of its more specific subcodes instead.