ICD-10 Code L70 – Acne (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L70 – Acne
What it is
L70 identifies acne, a common skin disorder involving blocked hair follicles and inflammation. You use it when the record documents acne without a more specific subtype.
Clinical signs
Typical findings include comedones, papules, pustules, and sometimes nodules on the face, chest, or back. Clinical features vary; refer to documentation.
When to use this code
Use L70 when the provider diagnoses acne and does not specify a more detailed category. It also fits general acne documentation in outpatient, dermatology, or primary care notes. Check documentation if the record names a specific acne type.
Do not use for
Do not use L70 if the chart identifies another specified acne disorder that has a more precise code. Do not assign it for unrelated rash, folliculitis, or acne-like eruptions without clear documentation.
Coding tip
Code from the provider’s exact acne wording and confirm whether a more specific subtype is documented.