ICD-10-CM Tabular Index · Chapter 4 · FY 2027 E10

Type 1 diabetes mellitus (E10) ICD-10-CM

The E10 code range covers type 1 diabetes mellitus with 117 ICD-10-CM diagnosis codes. 87 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
117
Diagnosis Codes
87
Billable Codes
E10
Code Range
E08–E13
Parent Section

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

ICD-10-CM

Codes in the E10 Range 117 codes · 87 billable

117 of 117 shown
  • E10 Type 1 diabetes mellitusNon-billable
  • E10.1 Type 1 diabetes mellitus with ketoacidosisNon-billable
  • E10.10 Type 1 diabetes mellitus with ketoacidosis without coma
  • E10.11 Type 1 diabetes mellitus with ketoacidosis with coma
  • E10.2 Type 1 diabetes mellitus with kidney complicationsNon-billable
  • 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
  • E10.3 Type 1 diabetes mellitus with ophthalmic complicationsNon-billable
  • E10.31 Type 1 diabetes mellitus with unspecified diabetic retinopathyNon-billable
  • 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
  • E10.32 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathyNon-billable
  • E10.321 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edemaNon-billable
  • E10.3211 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, right eye
  • E10.3212 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, left eye
  • E10.3213 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, bilateral
  • E10.3219 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, unspecified eye
  • E10.329 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edemaNon-billable
  • E10.3291 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, right eye
  • E10.3292 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, left eye
  • E10.3293 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, bilateral
  • E10.3299 Type 1 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eye
  • E10.33 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathyNon-billable
  • E10.331 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edemaNon-billable
  • E10.3311 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, right eye
  • E10.3312 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, left eye
  • E10.3313 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, bilateral
  • E10.3319 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, unspecified eye
  • E10.339 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edemaNon-billable
  • E10.3391 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema, right eye
  • E10.3392 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema, left eye
  • E10.3393 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema, bilateral
  • E10.3399 Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema, unspecified eye
  • E10.34 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathyNon-billable
  • E10.341 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edemaNon-billable
  • E10.3411 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema, right eye
  • E10.3412 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema, left eye
  • E10.3413 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema, bilateral
  • E10.3419 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy with macular edema, unspecified eye
  • E10.349 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edemaNon-billable
  • E10.3491 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema, right eye
  • E10.3492 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema, left eye
  • E10.3493 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema, bilateral
  • E10.3499 Type 1 diabetes mellitus with severe nonproliferative diabetic retinopathy without macular edema, unspecified eye
  • E10.35 Type 1 diabetes mellitus with proliferative diabetic retinopathyNon-billable
  • E10.351 Type 1 diabetes mellitus with proliferative diabetic retinopathy with macular edemaNon-billable
  • E10.3511 Type 1 diabetes mellitus with proliferative diabetic retinopathy with macular edema, right eye
  • E10.3512 Type 1 diabetes mellitus with proliferative diabetic retinopathy with macular edema, left eye
  • E10.3513 Type 1 diabetes mellitus with proliferative diabetic retinopathy with macular edema, bilateral
  • E10.3519 Type 1 diabetes mellitus with proliferative diabetic retinopathy with macular edema, unspecified eye
  • E10.352 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the maculaNon-billable
  • E10.3521 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula, right eye
  • E10.3522 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula, left eye
  • E10.3523 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula, bilateral
  • E10.3529 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula, unspecified eye
  • E10.353 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the maculaNon-billable
  • E10.3531 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula, right eye
  • E10.3532 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula, left eye
  • E10.3533 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula, bilateral
  • E10.3539 Type 1 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula, unspecified eye
  • E10.354 Type 1 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachmentNon-billable
  • E10.3541 Type 1 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment, right eye
  • E10.3542 Type 1 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment, left eye
  • E10.3543 Type 1 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment, bilateral
  • E10.3549 Type 1 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and rhegmatogenous retinal detachment, unspecified eye
  • E10.355 Type 1 diabetes mellitus with stable proliferative diabetic retinopathyNon-billable
  • E10.3551 Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, right eye
  • E10.3552 Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, left eye
  • E10.3553 Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, bilateral
  • E10.3559 Type 1 diabetes mellitus with stable proliferative diabetic retinopathy, unspecified eye
  • E10.359 Type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edemaNon-billable
  • E10.3591 Type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edema, right eye
  • E10.3592 Type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edema, left eye
  • E10.3593 Type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edema, bilateral
  • E10.3599 Type 1 diabetes mellitus with proliferative diabetic retinopathy without macular edema, unspecified eye
  • E10.36 Type 1 diabetes mellitus with diabetic cataract
  • E10.37 Type 1 diabetes mellitus with diabetic macular edema, resolved following treatmentNon-billable
  • E10.37X1 Type 1 diabetes mellitus with diabetic macular edema, resolved following treatment, right eye
  • E10.37X2 Type 1 diabetes mellitus with diabetic macular edema, resolved following treatment, left eye
  • E10.37X3 Type 1 diabetes mellitus with diabetic macular edema, resolved following treatment, bilateral
  • E10.37X9 Type 1 diabetes mellitus with diabetic macular edema, resolved following treatment, unspecified eye
  • E10.39 Type 1 diabetes mellitus with other diabetic ophthalmic complication
  • E10.4 Type 1 diabetes mellitus with neurological complicationsNon-billable
  • 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
  • E10.5 Type 1 diabetes mellitus with circulatory complicationsNon-billable
  • 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
  • E10.6 Type 1 diabetes mellitus with other specified complicationsNon-billable
  • E10.61 Type 1 diabetes mellitus with diabetic arthropathyNon-billable
  • E10.610 Type 1 diabetes mellitus with diabetic neuropathic arthropathy
  • E10.618 Type 1 diabetes mellitus with other diabetic arthropathy
  • E10.62 Type 1 diabetes mellitus with skin complicationsNon-billable
  • 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
  • E10.63 Type 1 diabetes mellitus with oral complicationsNon-billable
  • E10.630 Type 1 diabetes mellitus with periodontal disease
  • E10.638 Type 1 diabetes mellitus with other oral complications
  • E10.64 Type 1 diabetes mellitus with hypoglycemiaNon-billable
  • 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.A Type 1 diabetes mellitus, presymptomaticNon-billable
  • 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

Clinical Terms in This Code Range

Definitions from the National Library of Medicine for conditions coded in the E10 range.

Diabetes Mellitus, Type 1

A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.

About the E10 Code Range

Type 1 diabetes is a form of diabetes marked by insulin deficiency. This category distinguishes diabetes without complications, diabetes with complications, and presymptomatic diabetes, before symptoms appear.

Complications are grouped by ketoacidosis, kidney, eye, nerve, and circulatory conditions, with another group for other specified complications. The ketoacidosis branch separates cases with and without coma. The eye branch separates types of eye complications; certain eye codes use a seventh character to identify the right eye, left eye, both eyes, or an unspecified eye.

E10.A separates presymptomatic diabetes by unspecified stage, Stage 1, and Stage 2. E10.9 identifies diabetes without complications.

Questions About This Page

How many billable codes are in the E10 range?

Of the 117 codes in this range, 87 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.

What does the E10 range classify?

The range classifies type 1 diabetes mellitus. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

All ICD-10-CM ChaptersAll of Chapter 4ICD-10-CM Code LookupMS-DRG ReferenceMedicare Code EditsPOA Exempt Codes

Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.