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v1.0.0
ICD-10 Guide
ICD-10 CodesQ87.40

Q87.40

Billable

Marfan syndrome, unspecified

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

Code Description

ICD-10 Q87.40 is a billable code used to indicate a diagnosis of marfan syndrome, unspecified.

Key Diagnostic Point:

Marfan syndrome is a genetic disorder that affects the connective tissue in the body, leading to a variety of complications, particularly in the cardiovascular, skeletal, and ocular systems. It is characterized by features such as tall stature, long limbs, and fingers, as well as cardiovascular abnormalities like aortic dilation or dissection. Patients may also exhibit scoliosis, pectus excavatum, and lens dislocation. The condition is caused by mutations in the FBN1 gene, which encodes the connective protein fibrillin-1. Diagnosis is often based on clinical criteria, including family history and the presence of specific physical features. While Marfan syndrome is primarily inherited in an autosomal dominant pattern, de novo mutations can also occur. The management of Marfan syndrome typically involves regular monitoring and may include surgical interventions for cardiovascular complications. Given its systemic nature, Marfan syndrome can be associated with other congenital malformations, including those affecting the skin, breast, spleen, and adrenal glands, necessitating a comprehensive approach to care.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of symptoms
  • Need for genetic testing and interpretation of results
  • Potential for associated congenital malformations
  • Documentation of family history and physical findings

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to include family history in the medical record
  • Misclassification of associated congenital malformations
  • Lack of genetic testing documentation

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include growth parameters, developmental milestones, and specific physical findings related to Marfan syndrome.

Common Clinical Scenarios

Common scenarios include routine check-ups for growth monitoring, referrals for orthopedic evaluations, and cardiovascular assessments.

Billing Considerations

Pediatric coders must be aware of the age-specific manifestations of Marfan syndrome and the importance of early detection.

Genetics

Documentation Requirements

Genetic documentation should include results from genetic testing, family pedigree, and any genetic counseling provided.

Common Clinical Scenarios

Scenarios may involve genetic counseling for families with a history of Marfan syndrome and discussions about reproductive options.

Billing Considerations

Genetic coders must ensure accurate coding of genetic tests and their implications for family members.

Coding Guidelines

Inclusion Criteria

Use Q87.40 When
  • 10 guidelines for congenital and chromosomal conditions emphasize the need for specificity in coding, including the documentation of associated congenital malformations and the use of additional codes when necessary

Exclusion Criteria

Do NOT use Q87.40 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99214CPT Code

Established patient office visit

Clinical Scenario

Used for routine follow-up visits for patients with Marfan syndrome.

Documentation Requirements

Documentation must include history, examination findings, and management plan.

Specialty Considerations

Pediatricians should focus on growth and developmental assessments.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

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

ICD-9 vs ICD-10

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

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    Marfan Foundation

Coding & Billing References

  • •
    Marfan Foundation

Frequently Asked Questions

What are the key features of Marfan syndrome?

Key features include tall stature, long limbs, cardiovascular abnormalities, and skeletal deformities. Regular monitoring is essential for managing potential complications.