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v1.0.0
ICD-10 Guide
ICD-10 CodesQ77.5

Q77.5

Billable

Diastrophic dysplasia

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

Code Description

ICD-10 Q77.5 is a billable code used to indicate a diagnosis of diastrophic dysplasia.

Key Diagnostic Point:

Diastrophic dysplasia is a rare autosomal recessive skeletal dysplasia characterized by short stature, joint deformities, and specific malformations of the musculoskeletal system. Clinically, it presents with a variety of congenital malformations including clubfoot, scoliosis, and limb reduction defects. Patients often exhibit a characteristic hitchhiker's thumb, which is a result of joint laxity. The condition is caused by mutations in the SLC26A2 gene, which plays a crucial role in sulfate transport and cartilage development. Diagnosis is typically made through clinical evaluation, radiographic findings, and genetic testing. Management involves a multidisciplinary approach, including orthopedic interventions for deformities, physical therapy, and genetic counseling for affected families. Early intervention is essential to improve functional outcomes and quality of life for individuals with diastrophic dysplasia.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation among patients
  • Need for genetic testing and interpretation of results
  • Potential for co-occurring congenital conditions
  • Documentation of specific deformities and their management

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to include genetic testing results
  • Misclassification of associated deformities
  • Lack of clarity on the severity of the condition

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Detailed growth and development assessments, including physical examination findings related to musculoskeletal deformities.

Common Clinical Scenarios

Management of a child with diastrophic dysplasia presenting with clubfoot and scoliosis requiring orthopedic intervention.

Billing Considerations

Pediatric coders must ensure accurate representation of the child's growth parameters and any interventions performed.

Genetics

Documentation Requirements

Comprehensive family history, genetic testing results, and counseling notes.

Common Clinical Scenarios

Genetic counseling session for a family with a history of diastrophic dysplasia, discussing recurrence risks and management options.

Billing Considerations

Genetic coders should focus on the implications of genetic testing and the need for precise documentation of genetic findings.

Coding Guidelines

Inclusion Criteria

Use Q77.5 When
  • Follow the official ICD
  • CM guidelines for coding congenital malformations, ensuring that all relevant clinical details are documented
  • Use additional codes to specify associated conditions or complications

Exclusion Criteria

Do NOT use Q77.5 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

27500CPT Code

Osteotomy, femur, for correction of deformity

Clinical Scenario

Used in cases where orthopedic intervention is required for limb deformities associated with diastrophic dysplasia.

Documentation Requirements

Detailed operative notes and pre-operative assessments.

Specialty Considerations

Orthopedic specialists should 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 like diastrophic dysplasia, 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 like diastrophic dysplasia, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    National Organization for Rare Disorders (NORD)

Coding & Billing References

  • •
    National Organization for Rare Disorders (NORD)

Frequently Asked Questions

What are the common treatments for diastrophic dysplasia?

Common treatments include orthopedic interventions for deformities, physical therapy to improve mobility, and genetic counseling for affected families to discuss recurrence risks and management options.