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v1.0.0
ICD-10 Guide
ICD-10 CodesQ12.1

Q12.1

Billable

Congenital displaced lens

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

Code Description

ICD-10 Q12.1 is a billable code used to indicate a diagnosis of congenital displaced lens.

Key Diagnostic Point:

Congenital displaced lens, also known as lens subluxation, is a condition where the lens of the eye is not positioned correctly within the eye. This malformation can occur due to genetic factors or developmental issues during gestation. The displaced lens can lead to various visual impairments, including blurred vision, double vision, and an increased risk of glaucoma. In pediatric patients, it is essential to monitor for associated conditions such as Marfan syndrome or homocystinuria, which can also present with lens displacement. Diagnosis typically involves a comprehensive eye examination, including slit-lamp examination and possibly imaging studies to assess the lens position and any associated ocular anomalies. Treatment options may include corrective lenses, surgical intervention to reposition the lens, or cataract surgery if significant opacification occurs. Early detection and management are crucial to prevent long-term visual impairment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and severity of lens displacement
  • Potential association with systemic genetic conditions
  • Need for comprehensive eye examination documentation
  • Differentiation from other ocular malformations

Audit Risk Factors

  • Inadequate documentation of associated genetic conditions
  • Failure to specify the type of lens displacement
  • Lack of clarity in the clinical rationale for surgical intervention
  • Misclassification of lens displacement severity

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Documentation must include detailed descriptions of the child's ocular examination findings, any associated systemic conditions, and treatment plans.

Common Clinical Scenarios

Pediatric patients presenting with visual complaints, family history of genetic conditions, or routine screenings revealing lens displacement.

Billing Considerations

Consideration of developmental milestones and visual acuity assessments is crucial for accurate coding.

Genetics

Documentation Requirements

Genetic testing results, family history, and any syndromic associations must be documented to support the diagnosis.

Common Clinical Scenarios

Patients with a known genetic syndrome presenting with lens displacement or referrals for genetic counseling due to family history.

Billing Considerations

Understanding the genetic implications and potential for hereditary transmission is vital for accurate coding.

Coding Guidelines

Inclusion Criteria

Use Q12.1 When
  • Follow the official ICD
  • CM guidelines for coding congenital conditions, ensuring specificity in documentation regarding the nature and severity of the malformation

Exclusion Criteria

Do NOT use Q12.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

66984CPT Code

Extracapsular cataract removal with insertion of intraocular lens

Clinical Scenario

Used when surgical intervention is required for lens displacement.

Documentation Requirements

Document the indication for surgery, pre-operative assessments, and post-operative care.

Specialty Considerations

Ophthalmology specialists must ensure accurate coding of the procedure in relation to the diagnosis.

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, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What are the common associated conditions with congenital displaced lens?

Common associated conditions include Marfan syndrome, homocystinuria, and other genetic syndromes that may affect ocular development. It is essential to evaluate for these conditions during diagnosis.