2025 ICD-10-CM code Q13.1
(Active) Effective Date: N/A Revision Date: N/A Deletion Date: N/A Congenital malformations - Congenital malformations of eye, ear, face and neck Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) Feed
Absence of iris (Aniridia). Use additional code for associated glaucoma (H42).
The medical necessity for coding Q13.1 is established by a proper clinical evaluation confirming the diagnosis of aniridia. This includes documentation supporting the absence of the iris and any associated findings.
Ophthalmologist or other qualified healthcare professional assessing and managing congenital eye conditions.
- Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- Congenital malformations of eye, ear, face and neck (Q10-Q18)
In simple words: This code describes the birth defect of missing iris in the eye (aniridia).If the patient also has glaucoma (a condition affecting eye pressure), a separate code will be needed to document that too.
Q13.1 designates the absence of the iris, a condition known as aniridia.This code is from Chapter Q of the ICD-10-CM classification, specifically addressing congenital malformations.It's crucial to note that this code is not for use on maternal records.If glaucoma is present, an additional code from category H40-H42 should be used to fully reflect the patient's condition.
Example 1: A newborn infant is diagnosed with aniridia during a routine ophthalmological examination.Q13.1 is used to code the condition., A child with a history of aniridia presents with elevated intraocular pressure and visual field defects. Q13.1 is used, along with a code for glaucoma (H42), to fully represent the clinical picture., An adult patient with known aniridia is undergoing a comprehensive eye exam, which reveals no additional conditions.Only Q13.1 is coded.
Complete ophthalmological examination report, including details about the absence of the iris, visual acuity measurements, and any associated conditions.If glaucoma is present, documentation should include intraocular pressure readings and visual field testing results.
** This code is part of a larger set of ICD-10-CM codes describing congenital eye abnormalities.It's essential to refer to the complete ICD-10-CM manual for accurate coding.
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- Specialties:Ophthalmology
- Place of Service:Office, Inpatient Hospital, Outpatient Hospital