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ICD-10 Guide
ICD-10 CodesQ75.04

Q75.04

Billable

Lambdoid craniosynostosis

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

Code Description

ICD-10 Q75.04 is a billable code used to indicate a diagnosis of lambdoid craniosynostosis.

Key Diagnostic Point:

Lambdoid craniosynostosis is a congenital condition characterized by the premature fusion of the lambdoid suture, which is located at the back of the skull. This fusion restricts the normal growth of the skull, leading to an abnormal head shape, often resulting in a flat area on the back of the head. The condition can be associated with developmental delays and increased intracranial pressure if not diagnosed and treated early. Lambdoid craniosynostosis can occur as an isolated condition or as part of a syndrome involving other congenital anomalies. Diagnosis is typically made through physical examination and imaging studies such as CT scans. Treatment often involves surgical intervention to correct the skull shape and allow for normal brain growth. Early intervention is crucial for optimal outcomes, as it can significantly impact cognitive and physical development.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and associated syndromes
  • Need for precise documentation of head shape and neurological status
  • Potential for co-occurring congenital anomalies
  • Variability in surgical approaches and timing of intervention

Audit Risk Factors

  • Inadequate documentation of associated conditions
  • Failure to specify the type of craniosynostosis
  • Misclassification of the severity of the condition
  • Inconsistent coding of surgical interventions

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed growth and developmental assessments, including head circumference measurements and neurological evaluations.

Common Clinical Scenarios

Assessment of infants with abnormal head shapes, pre-operative evaluations for surgical correction, and post-operative follow-ups.

Billing Considerations

Consideration of family history and potential syndromic associations is crucial for accurate coding.

Genetics

Documentation Requirements

Genetic testing results, family history of congenital anomalies, and any syndromic associations.

Common Clinical Scenarios

Genetic counseling for families with a history of craniosynostosis or related syndromes, and evaluation of genetic syndromes that may present with craniosynostosis.

Billing Considerations

Documentation should include any genetic syndromes that may be associated with lambdoid craniosynostosis.

Coding Guidelines

Inclusion Criteria

Use Q75.04 When
  • 10 guidelines specify that congenital conditions should be coded based on the specific type and any associated anomalies
  • Accurate documentation of the condition's severity and any surgical interventions is essential for proper coding

Exclusion Criteria

Do NOT use Q75.04 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

61595CPT Code

Cranial vault remodeling

Clinical Scenario

Performed to correct skull shape in lambdoid craniosynostosis.

Documentation Requirements

Operative report detailing the procedure and pre-operative assessments.

Specialty Considerations

Pediatric surgical documentation must include growth assessments.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

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

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    American Academy of Pediatrics - Craniosynostosis

Coding & Billing References

  • •
    American Academy of Pediatrics - Craniosynostosis

Frequently Asked Questions

What is the primary treatment for lambdoid craniosynostosis?

The primary treatment is surgical intervention to correct the skull shape and allow for normal brain growth. Early diagnosis and treatment are crucial for optimal outcomes.