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BETA v.3.0

2025 ICD-10-CM code E10.36

Type 1 diabetes mellitus with diabetic cataract.

Code E10.36 should be used when a patient with type 1 diabetes has a cataract that is documented as being caused by or related to their diabetes. This code should not be used if the cataract is unrelated to the diabetes.

The medical necessity for using E10.36 is established by the presence of a cataract directly related to the patient's type 1 diabetes.

Clinicians should diagnose this condition based on a comprehensive patient history, physical examination, and ophthalmological assessment. Diagnostic tests for type 1 diabetes include glucose tolerance tests, plasma glucose levels, HbA1c levels, CBC, and urine analysis for albumin, glucose, and ketones. Additionally, anti-insulin antibodies may be tested.Diagnostic eye procedures include ophthalmoscopy, fluorescein angiography, optical coherence tomography, and B-scan ultrasonography. Treatment typically involves insulin therapy, dietary management, blood glucose monitoring, and cataract surgery.

In simple words: This code indicates that the patient has type 1 diabetes, which has led to the formation of cataracts in their eyes.

Type 1 diabetes mellitus with diabetic cataract. This code signifies that the patient has type 1 diabetes, which has caused the development of a cataract.

Example 1: A patient with a long-standing history of type 1 diabetes presents with blurred vision and difficulty seeing at night. Upon examination, a cataract is diagnosed in both eyes. The code E10.36 is used to indicate the diabetic cataract as a complication of the pre-existing type 1 diabetes., A young patient with type 1 diabetes is referred to an ophthalmologist for evaluation of decreased vision. After a thorough eye exam, the ophthalmologist diagnoses a diabetic cataract in the right eye. The ICD-10 code E10.36 is used to document the diabetic cataract in the context of the patient’s underlying type 1 diabetes., A patient with type 1 diabetes mellitus undergoes routine eye screening and is found to have early-stage cataracts. E10.36 is used as a secondary diagnosis to document the cataract formation related to their diabetes.

Documentation should include a detailed history of type 1 diabetes, symptoms related to the cataract, ophthalmological findings, and the results of any diagnostic tests or procedures performed.

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