ICD-10-CM Billable Code

H21.26

Iris atrophy (essential) (progressive)

Clinical Classification Guidelines

Medical Intelligence & Overview

Iris atrophy, also known as essential or progressive iris atrophy, is a condition characterized by the gradual degeneration or wasting away of the iris, the colored part of the eye. This condition can lead to vision problems and changes in eye appearance. Although it is considered a localized degenerative process, iris atrophy can affect one or both eyes, and may progress over time, necessitating careful monitoring and management.

Causes & Symptoms

Clinical Causes: Idiopathic (no known cause) Age-related degenerative changes Genetic predisposition Previous eye injuries or trauma Inflammatory conditions affecting the eye Certain systemic diseases that can affect ocular tissues

Key Symptoms: Uneven or irregular iris shape Changes in eye color or pigmentation Sensitivity to light (photophobia) Decreased visual acuity or blurred vision Presence of a dilated or irregular pupil Possible discomfort or eye irritation Appearance of a darker or lighter patch on the iris

Diagnostic & Treatment

Diagnosis Path: Diagnosis of iris atrophy involves a comprehensive eye examination by an ophthalmologist. The specialist typically utilizes slit-lamp biomicroscopy to observe the iris tissue's condition, noting signs of degeneration or irregularities. Additional tests, such as photographic documentation or ocular imaging, may be employed to monitor progression. In some cases, differential diagnosis is necessary to distinguish from other conditions that affect the iris, such as coloboma or pigment dispersion syndrome.

Treatment Protocols: Use of tinted glasses or contact lenses to reduce light sensitivity Regular eye check-ups to monitor progression Treatment of associated ocular or systemic conditions Surgical options may be considered in severe cases, such as iris reconstruction or colored contact lenses for cosmetic purposes

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is H21.26 a billable ICD-10 code?
Yes, H21.26 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report H21.26?
Clinical documentation must specify the nature of Iris atrophy (essential) (progressive) and any associated comorbidities for accurate reporting.

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