Diabetes Related Eye Diseases



Diabetes is a complex metabolic disease affecting blood sugar level causing hyperglycemia which in turn damage eyes. In majority of cases, blurry vision is the first warning sign of diabetes. Fluid leak into lens of eyes makes the lens swell and change shape leading to blurry vision. The best way to keep eyes healthy is to keep diabetes under control. Anti-diabetics, physically fitness, healthy diet and avoid smoking may help to control blood sugar levels which further reduce risk of diabetic eye disease. For perfect clinical documentation of diabetic eye diseases, ophthalmologists may utilize the services of professional medical billing companies.


Here in below are three diabetes related eye diseases and their ICD-10 codes:


1. Diabetic Retinopathy:


Disorders of the retina caused by diabetes are known as diabetic retinopathy. Two major types of retinopathies are (i) Non-proliferative retinopathy and (ii) Proliferative retinopathy. Non-proliferative type is the most common and there are no abnormal blood vessels, but capillaries at the back of the eye balloon form pouches. In some cases, capillary walls lose their ability to control the passage of substances between the blood and the retina, resulting macula swells with fluid (macula edema), causing vision blurs and total vision loss. In proliferative retinopathy, new abnormal blood vessels start growing in the retina which are weak and oozing blood resulting in blurred vision.


Typically, in early stages, retinopathy is asymptomatic. As the disease advances, floaters, blurred vision, impaired colour vision, dark or empty areas in vision and vision loss may be experienced by patient.


ICD-10 codes for diabetic retinopathy are:

Type 1 Diabetes, Non-proliferative Retinopathy

E10.31 – Type 1 diabetes mellitus with unspecified diabetic retinopathy E10.32 – Type 1 diabetes mellitus with mild non-proliferative diabetic retinopathy

  • E10.329 – Type 1 diabetes mellitus with mild non-proliferative diabetic retinopathy without macular edema

E10.33 – Type 1 diabetes mellitus with moderate non-proliferative diabetic retinopathy

  • E10.339 – Type 1 diabetes mellitus with moderate non-proliferative diabetic retinopathy without macular edema

E10.34 – Type 1 diabetes mellitus with severe non-proliferative diabetic retinopathy

  • E10.341 – Type 1 diabetes mellitus with severe non-proliferative diabetic retinopathy with macular edema

  • E10.349 – Type 1 diabetes mellitus with severe non-proliferative diabetic retinopathy without macular edema

Type 1 Diabetes, Proliferative Retinopathy

E10.35 – Type 1 diabetes mellitus with proliferative diabetic retinopathy

  • 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 hematogenous 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

Type 2 Diabetes, Non-proliferative Retinopathy

E11.31 – Type 2 diabetes mellitus with unspecified diabetic retinopathy E11.32 – Type 2 diabetes mellitus with mild non-proliferative diabetic retinopathy

  • E11.321 – Type 2 diabetes mellitus with mild non-proliferative diabetic retinopathy with macular edema

  • E11.329 – Type 2 diabetes mellitus with mild non-proliferative diabetic retinopathy without macular edema

E11.33 – Type 2 diabetes mellitus with moderate non-proliferative diabetic retinopathy

  • E11.331 – Type 2 diabetes mellitus with moderate non-proliferative diabetic retinopathy with macular edema

  • E11.339 – Type 2 diabetes mellitus with moderate non-proliferative diabetic retinopathy without macular edema

Type 2 Diabetes, Proliferative Retinopathy

E11.34 – Type 2 diabetes mellitus with severe non-proliferative diabetic retinopathy

  • E11.341 – Type 2 diabetes mellitus with severe non-proliferative diabetic retinopathy with macular edema

  • E11.349 – Type 2 diabetes mellitus with severe non-proliferative diabetic retinopathy without macular edema

E11.35 – Type 2 diabetes mellitus with proliferative diabetic retinopathy

  • E11.351 – Type 2 diabetes mellitus with proliferative diabetic retinopathy with macular edema

  • E11.352 – Type 2 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment involving the macula

  • E11.353 – Type 2 diabetes mellitus with proliferative diabetic retinopathy with traction retinal detachment not involving the macula

  • E11.354 – Type 2 diabetes mellitus with proliferative diabetic retinopathy with combined traction retinal detachment and hematogenous retinal detachment

  • E11.355 – Type 2 diabetes mellitus with stable proliferative diabetic retinopathy

  • E11.359 – Type 2 diabetes mellitus with proliferative diabetic retinopathy without macular edema

2. Glaucoma:

Damage to the optic nerve due to various eye conditions is known as glaucoma. Major cause of glaucoma is very high pressure in eyes resulting in partial vision loss or blindness, usually affecting both eyes, although one may be more severely affected than the other. Symptoms of glaucoma are blurred vision, severe headache, eye pain, eye redness, patchy blind spots in peripheral or central vision, halos around the eyes and tunnel vision in the advanced stages. Line of treatment is lowering intraocular pressure eye drops (Prostaglandins, beta blockers, Alpha-adrenergic agonists), oral medications, and surgery. Surgical line of treatment is laser therapy, drainage tubes, filtering surgery and minimally invasive glaucoma surgery.


ICD-10 codes for glaucoma are:

H40 – Glaucoma

  • H40.0 – Glaucoma suspect

  • H40.1 – Open-angle glaucoma

  • H40.2 – Primary angle-closure glaucoma

  • H40.3 – Glaucoma secondary to eye trauma

  • H40.4 – Glaucoma secondary to eye inflammation

  • H40.5 – Glaucoma secondary to other eye disorders

  • H40.6 – Glaucoma secondary to drugs

  • H40.8 – Other glaucoma

  • H40.9 – Unspecified glaucoma

H42 – Glaucoma in diseases classified elsewhere


3. Cataract:

Diabetic patients are at more risk to have cataract. Rapid movement in blood sugar levels cause blurry vision in diabetic patients. Repeated swelling causes lens damage ant it became cloudy, resulting in a cataract. Symptoms of cataract are blurred and glared vision. Preferred line of treatment is surgical removal of lens, replacing it with artificial one.

ICD-10 codes for Cataracts are:


H25 – Age-related cataract

  • H25.0 – Age-related incipient cataract

  • H25.01 – Cortical age-related cataract

  • H25.03 – Anterior subcapsular polar age-related cataract

  • H25.04 – Posterior subcapsular polar age-related cataract

  • H25.09 – Other age-related incipient cataract

  • H25.1 – Age-related nuclear cataract

  • H25.2 – Age-related cataract morgagnian type

  • H25.8 – Other age-related cataract

  • H25.9 – Unspecified age-related cataract

H26 – Other cataract

  • H26.0 – Infantile and juvenile cataract

  • H26.1 – Traumatic cataract

  • H26.2 – Complicated cataract

  • H26.3 – Drug-induced cataract

  • H26.4 – Secondary cataract

  • H26.8 – Other specified cataract

  • H26.9 – Unspecified cataract

H27 – Other disorders of lens

  • H27.0 – Aphakia

  • H27.1 – Dislocation of lens

  • H27.10 – Unspecified dislocation of lens

  • H27.11 – Subluxation of lens

  • H27.12 – Anterior dislocation of lens

  • H27.13 – Posterior dislocation of lens

  • H27.8 – Other specified disorders of lens

  • H27.9 – Unspecified disorder of lens

H28 – Cataract in diseases classified elsewhere

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