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v1.0.0
ICD-10 Guide
ICD-10 CodesQ84.0

Q84.0

Billable

Congenital alopecia

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

Code Description

ICD-10 Q84.0 is a billable code used to indicate a diagnosis of congenital alopecia.

Key Diagnostic Point:

Congenital alopecia refers to a group of conditions characterized by the absence of hair at birth or the failure of hair to develop normally. This condition can manifest in various forms, including total alopecia, where there is a complete absence of hair on the scalp and body, or localized forms affecting specific areas. Congenital alopecia can be associated with genetic syndromes, such as ectodermal dysplasia, which may also involve other ectodermal structures like teeth and sweat glands. The pathophysiology often involves genetic mutations that affect hair follicle development and function. Diagnosis is typically clinical, based on the observation of hair loss patterns and associated features. Genetic testing may be warranted in cases where a syndromic cause is suspected. Management may include cosmetic solutions, such as wigs or hairpieces, and addressing any associated conditions. Understanding the underlying genetic basis is crucial for prognosis and family counseling.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in presentation and associated syndromes
  • Need for genetic testing and interpretation
  • Differentiation from acquired forms of alopecia
  • Documentation of associated congenital anomalies

Audit Risk Factors

  • Inadequate documentation of associated congenital anomalies
  • Failure to specify the type of alopecia
  • Misclassification of congenital vs. acquired conditions
  • Lack of genetic testing documentation

Specialty Focus

Medical Specialties

Pediatrics

Documentation Requirements

Documentation should include detailed descriptions of hair loss patterns, associated anomalies, and any interventions or referrals made.

Common Clinical Scenarios

A pediatric patient presenting with hair loss at birth, requiring evaluation for syndromic conditions.

Billing Considerations

Consideration of family history and potential genetic counseling needs.

Genetics

Documentation Requirements

Genetic testing results, family history, and any syndromic associations should be documented thoroughly.

Common Clinical Scenarios

A child with congenital alopecia undergoing genetic evaluation for ectodermal dysplasia.

Billing Considerations

Understanding the implications of genetic findings for family planning and management.

Coding Guidelines

Inclusion Criteria

Use Q84.0 When
  • Follow the official ICD
  • CM guidelines for coding congenital conditions, ensuring accurate documentation of the condition's nature and any associated anomalies

Exclusion Criteria

Do NOT use Q84.0 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit

Clinical Scenario

Used for follow-up visits in patients with congenital alopecia.

Documentation Requirements

Document the reason for the visit, including any changes in condition or management.

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 congenital alopecia and its associations.

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 congenital alopecia and its associations.

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 congenital alopecia and its associations.

Resources

Clinical References

  • •
    Congenital Alopecia Information

Coding & Billing References

  • •
    Congenital Alopecia Information

Frequently Asked Questions

What is the difference between congenital alopecia and acquired alopecia?

Congenital alopecia is present at birth and may be associated with genetic syndromes, while acquired alopecia develops later in life due to various factors such as autoimmune conditions, stress, or hormonal changes.