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ICD-10 Guide
ICD-10 CodesQ82.4

Q82.4

Billable

Ectodermal dysplasia (anhidrotic)

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

Code Description

ICD-10 Q82.4 is a billable code used to indicate a diagnosis of ectodermal dysplasia (anhidrotic).

Key Diagnostic Point:

Ectodermal dysplasia (anhidrotic) is a genetic disorder characterized by the abnormal development of ectodermal structures, which include skin, hair, nails, teeth, and sweat glands. The anhidrotic form, also known as hypohidrotic ectodermal dysplasia, is marked by a reduced ability to sweat due to the absence or malformation of sweat glands, leading to an increased risk of overheating. Patients often present with sparse hair, missing or conical teeth, and dry skin. The condition can also be associated with other congenital malformations, such as breast and nipple abnormalities, and may involve chromosomal abnormalities, particularly in syndromic forms. Diagnosis is typically made through clinical evaluation, family history, and genetic testing to identify mutations in genes such as EDA, EDAR, and EDARADD. Management focuses on symptomatic treatment, including dental care, skin care, and temperature regulation strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and associated conditions
  • Need for genetic testing and interpretation of results
  • Potential for syndromic associations complicating coding
  • Documentation of multiple congenital anomalies

Audit Risk Factors

  • Inadequate documentation of associated congenital anomalies
  • Failure to include genetic testing results
  • Misclassification of ectodermal dysplasia types
  • Lack of clarity in clinical notes regarding symptoms

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Pediatric documentation should include growth parameters, developmental milestones, and detailed descriptions of skin and hair abnormalities.

Common Clinical Scenarios

Common scenarios include infants presenting with heat intolerance, dental issues, and skin infections due to impaired sweating.

Billing Considerations

Consideration must be given to the age of the patient and the potential for evolving symptoms over time.

Genetics

Documentation Requirements

Genetic documentation should include family history, results of genetic testing, and any syndromic associations.

Common Clinical Scenarios

Genetic counseling scenarios often involve discussing inheritance patterns and implications for family members.

Billing Considerations

Accurate coding requires understanding of the genetic basis of the condition and its potential implications for other family members.

Coding Guidelines

Inclusion Criteria

Use Q82.4 When
  • Follow official ICD
  • 10 guidelines for coding congenital conditions, ensuring accurate documentation of all associated anomalies and genetic testing results
  • Use additional codes as necessary to capture the full clinical picture

Exclusion Criteria

Do NOT use Q82.4 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used for follow-up visits in patients with ectodermal dysplasia.

Documentation Requirements

Document history, examination findings, and any management plans.

Specialty Considerations

Pediatricians should focus on growth and development assessments.

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 ability to capture the complexity of ectodermal dysplasia and its associated anomalies.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the ability to capture the complexity of ectodermal dysplasia and its associated anomalies.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of congenital conditions, improving the ability to capture the complexity of ectodermal dysplasia and its associated anomalies.

Resources

Clinical References

  • •
    Ectodermal Dysplasia International

Coding & Billing References

  • •
    Ectodermal Dysplasia International

Frequently Asked Questions

What are the common symptoms of ectodermal dysplasia?

Common symptoms include sparse hair, missing teeth, dry skin, and an inability to sweat, which can lead to overheating.