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ICD-10 Guide
ICD-10 CodesL70.9

L70.9

Billable

Acne, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 L70.9 is a billable code used to indicate a diagnosis of acne, unspecified.

Key Diagnostic Point:

Acne, unspecified (ICD-10 code L70.9) refers to a common skin condition characterized by the presence of comedones, papules, pustules, and sometimes cysts primarily affecting the face, back, and shoulders. Acne occurs when hair follicles become clogged with oil and dead skin cells, leading to inflammation and bacterial overgrowth. The condition can manifest in various forms, including acne vulgaris, which is the most prevalent type, and can affect individuals of all ages, though it is most commonly seen in adolescents and young adults. The disease progression can vary, with some patients experiencing mild, transient forms while others may develop severe, persistent acne that can lead to scarring and psychological distress. Diagnostic considerations include a thorough clinical examination and, in some cases, hormonal evaluations to rule out underlying endocrine disorders. Treatment options range from topical retinoids and antibiotics to systemic therapies, including hormonal treatments and isotretinoin for severe cases. Accurate diagnosis and management are crucial to prevent complications and improve patient outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors
  • Documentation gaps
  • Billing challenges

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Primary Care

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Acne is a prevalent dermatological condition that affects a significant portion of the population, particularly adolescents and young adults. Its impact on mental health, including anxiety and depression, underscores the importance of effective management. Quality measures in dermatology often include patient-reported outcomes related to acne treatment. Understanding the epidemiology of acne can help healthcare providers tailor interventions and allocate resources effectively, ultimately improving patient care and reducing healthcare utilization.

ICD-9 vs ICD-10

Acne is a prevalent dermatological condition that affects a significant portion of the population, particularly adolescents and young adults. Its impact on mental health, including anxiety and depression, underscores the importance of effective management. Quality measures in dermatology often include patient-reported outcomes related to acne treatment. Understanding the epidemiology of acne can help healthcare providers tailor interventions and allocate resources effectively, ultimately improving patient care and reducing healthcare utilization.

Reimbursement & Billing Impact

Reimbursement considerations include the patient's insurance policy, which may dictate coverage for specific treatments. Common denials may arise from insufficient documentation or lack of medical necessity. Coders should ensure that the diagnosis aligns with the services billed and that all relevant clinical notes are included to support the claim. Best practices include regular training on coding updates and maintaining clear communication with healthcare providers to ensure accurate documentation.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for L00-L99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for L00-L99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by L70.9?

L70.9 covers unspecified acne, which may include various forms of acne not specifically categorized under other codes, such as acne vulgaris, acne conglobata, or acne rosacea. It is used when the specific type of acne is not documented.

When should L70.9 be used instead of related codes?

L70.9 should be used when the specific type of acne is not clearly defined in the medical record. If the documentation specifies a type of acne, such as L70.0 for acne vulgaris, that code should be used instead.

What documentation supports L70.9?

Documentation should include a detailed clinical assessment of the patient's skin condition, treatment history, and any relevant laboratory results that may indicate the severity or type of acne. Clear notes on the absence of specific types of acne are also essential.