E10 Type 1 diabetes mellitus

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Type 1 diabetes mellitus is E10 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
E08-E13: Diabetes mellitus (E08-E13)
Category E10
65 codes (48 billable)
FY2026 Status
Stable since FY2024
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
Not coded here. These conditions should NOT be coded together with E10.
  • 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.-)

Official Coding Guidelines

Diabetes mellitus (TOC entry)

a. Diabetes mellitus ................................................................................................................... 39

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.4.a
Obesity (TOC entry)

b. Obesity .................................................................................................................................. 42

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.4.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference E10 with the canonical source and edition:

E10 — Type 1 diabetes mellitus. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/E10

Canonical URL: https://icd10codingpro.com/codes/E10

Related Codes

More Specific Codes

E10.1 Type 1 diabetes mellitus with ketoacidosis E10.2 Type 1 diabetes mellitus with kidney complications E10.3 Type 1 diabetes mellitus with ophthalmic complications E10.4 Type 1 diabetes mellitus with neurological complications E10.5 Type 1 diabetes mellitus with circulatory complications E10.6 Type 1 diabetes mellitus with other specified complications E10.8 Type 1 diabetes mellitus with unspecified complications E10.9 Type 1 diabetes mellitus without complications E10.A Type 1 diabetes mellitus, presymptomatic

All Codes in E10

Every most-specific code under E10 Type 1 diabetes mellitus (48 codes):

Show the complete E10 code list
E10.10 Type 1 diabetes mellitus with ketoacidosis without coma E10.11 Type 1 diabetes mellitus with ketoacidosis with coma E10.21 Type 1 diabetes mellitus with diabetic nephropathy E10.22 Type 1 diabetes mellitus with diabetic chronic kidney disease E10.29 Type 1 diabetes mellitus with other diabetic kidney complication E10.311 Type 1 diabetes mellitus with unspecified diabetic retinopathy with macular edema E10.319 Type 1 diabetes mellitus with unspecified diabetic retinopathy without macular edema E10.321 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema E10.329 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema E10.331 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema E10.339 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema E10.341 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema E10.349 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema E10.351 Type 1 diabetes mellitus with proliferative diabetic retinopathy with macular edema E10.352 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula E10.353 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula E10.354 Type 1 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment E10.355 Type 1 diabetes mellitus with stable proliferative diabetic retinopathy E10.359 Type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edema E10.36 Type 1 diabetes mellitus with diabetic cataract E10.37 Type 1 diabetes mellitus with diabetic macular edema, resolved following treatment E10.39 Type 1 diabetes mellitus with other diabetic ophthalmic complication E10.40 Type 1 diabetes mellitus with diabetic neuropathy, unspecified E10.41 Type 1 diabetes mellitus with diabetic mononeuropathy E10.42 Type 1 diabetes mellitus with diabetic polyneuropathy E10.43 Type 1 diabetes mellitus with diabetic autonomic (poly)neuropathy E10.44 Type 1 diabetes mellitus with diabetic amyotrophy E10.49 Type 1 diabetes mellitus with other diabetic neurological complication E10.51 Type 1 diabetes mellitus with diabetic peripheral angiopathy without gangrene E10.52 Type 1 diabetes mellitus with diabetic peripheral angiopathy with gangrene E10.59 Type 1 diabetes mellitus with other circulatory complications E10.610 Type 1 diabetes mellitus with diabetic neuropathic arthropathy E10.618 Type 1 diabetes mellitus with other diabetic arthropathy E10.620 Type 1 diabetes mellitus with diabetic dermatitis E10.621 Type 1 diabetes mellitus with foot ulcer E10.622 Type 1 diabetes mellitus with other skin ulcer E10.628 Type 1 diabetes mellitus with other skin complications E10.630 Type 1 diabetes mellitus with periodontal disease E10.638 Type 1 diabetes mellitus with other oral complications E10.641 Type 1 diabetes mellitus with hypoglycemia with coma E10.649 Type 1 diabetes mellitus with hypoglycemia without coma E10.65 Type 1 diabetes mellitus with hyperglycemia E10.69 Type 1 diabetes mellitus with other specified complication E10.8 Type 1 diabetes mellitus with unspecified complications E10.9 Type 1 diabetes mellitus without complications E10.A0 Type 1 diabetes mellitus, presymptomatic, unspecified E10.A1 Type 1 diabetes mellitus, presymptomatic, Stage 1 E10.A2 Type 1 diabetes mellitus, presymptomatic, Stage 2

Related HCPCS Level II Codes

Supplies, devices, and drugs commonly associated with E10:

J1815 Insulin, per 5 units A4253 Blood glucose test strips, per 50 E0607 Home blood glucose monitor
Search all 70,000+ ICD-10-CM codes →
Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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