ICD-10 Code for Hormonal Acne
The ICD-10 code for hormonal acne is L70.0 (Acne vulgaris), as there is no separate specific code for "hormonal acne" in the ICD-10 classification system.
Understanding the Coding
The ICD-10 does not distinguish between hormonal acne and other forms of acne vulgaris. All acne cases, regardless of their hormonal etiology, are coded under the general acne vulgaris category 1. This is because acne vulgaris itself has a multifactorial pathogenesis that inherently includes hormonal influences—particularly androgen-mediated sebaceous gland activity—as a central component 1.
Clinical Context
While "hormonal acne" is a commonly used clinical term, especially for acne that:
- Concentrates on the lower face and jawline
- Flares with the menstrual cycle
- Responds to hormonal therapies 2
...the formal diagnostic coding system does not create a separate category for this presentation. The 2024 American Academy of Dermatology guidelines define acne vulgaris as a chronic inflammatory skin disease of the pilosebaceous unit, with androgens playing central roles in pathogenesis across all presentations 1.
Additional Coding Considerations
If there is documented hyperandrogenism (such as polycystic ovarian syndrome, hirsutism, or other endocrine disorders), you should code both:
- L70.0 (Acne vulgaris)
- Plus the appropriate endocrine disorder code (e.g., E28.2 for polycystic ovarian syndrome) 1
This dual coding approach captures both the skin manifestation and the underlying hormonal condition when clinically relevant and documented through endocrine testing.
Important Caveat
The ICD-10 has known limitations in coding dermatological conditions with specificity 3. The upcoming ICD-11 may address some of these gaps, but currently, L70.0 remains the appropriate code for all acne vulgaris presentations, including those with prominent hormonal features.