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v1.0.0
ICD-10 Guide
ICD-10 CodesQ13.1

Q13.1

Billable

Absence of iris

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 Q13.1 is a billable code used to indicate a diagnosis of absence of iris.

Key Diagnostic Point:

Absence of iris, also known as aniridia, is a congenital condition characterized by the complete or partial absence of the iris, the colored part of the eye. This condition can lead to various visual impairments, including photophobia (sensitivity to light), nystagmus (involuntary eye movement), and reduced visual acuity. Aniridia is often associated with other ocular anomalies such as cataracts, glaucoma, and corneal opacities. It can occur as an isolated condition or as part of syndromic presentations, such as WAGR syndrome, which includes Wilms tumor, aniridia, genitourinary abnormalities, and range of developmental delays. The genetic basis of aniridia is primarily linked to mutations in the PAX6 gene, which plays a crucial role in eye development. Diagnosis typically involves a comprehensive eye examination and may include genetic testing to identify underlying syndromic associations. Management of aniridia focuses on addressing visual impairments and monitoring for associated ocular conditions, often requiring a multidisciplinary approach involving pediatricians, ophthalmologists, and geneticists.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of the condition.
  • Potential association with other congenital anomalies or syndromes.
  • Need for genetic testing and interpretation of results.
  • Documentation of associated ocular conditions and their management.

Audit Risk Factors

  • Inadequate documentation of associated ocular conditions.
  • Failure to document genetic testing results.
  • Misclassification of aniridia as a more severe condition.
  • Lack of clarity on the impact of the condition on visual function.

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed pediatric history including prenatal factors, family history of congenital conditions, and developmental milestones.

Common Clinical Scenarios

Evaluation of a child presenting with photophobia and visual impairment, assessment of developmental delays in a child with aniridia.

Billing Considerations

Consideration of the psychosocial impact of visual impairment on child development and family dynamics.

Genetics

Documentation Requirements

Genetic testing results, family pedigree, and documentation of any syndromic associations.

Common Clinical Scenarios

Genetic counseling for families with a history of aniridia or related syndromes, assessment of risk for future pregnancies.

Billing Considerations

Understanding the inheritance patterns and implications of genetic findings for family members.

Coding Guidelines

Inclusion Criteria

Use Q13.1 When
  • Follow ICD
  • CM guidelines for coding congenital conditions, ensuring accurate documentation of associated anomalies and syndromic features
  • Use additional codes to capture related conditions and complications

Exclusion Criteria

Do NOT use Q13.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

92014CPT Code

Ophthalmological examination, comprehensive, established patient

Clinical Scenario

Used for routine follow-up of a patient with aniridia.

Documentation Requirements

Document visual acuity, ocular health, and any interventions performed.

Specialty Considerations

Ophthalmologists should ensure thorough documentation of findings related to aniridia.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of congenital conditions like aniridia, improving the ability to capture associated anomalies and syndromic features.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions like aniridia, improving the ability to capture associated anomalies and syndromic features.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of congenital conditions like aniridia, improving the ability to capture associated anomalies and syndromic features.

Resources

Clinical References

  • •
    American Academy of Pediatrics - Aniridia

Coding & Billing References

  • •
    American Academy of Pediatrics - Aniridia

Frequently Asked Questions

What is the significance of coding aniridia accurately?

Accurate coding of aniridia is crucial for appropriate management and monitoring of associated ocular conditions. It also aids in genetic counseling and understanding the potential implications for the patient and their family.