Sally is 25 years old. She arrives at the doctor's office complaining of large pimples on her scalp, especially at the back of her head and along her neck. She said while she knew she was not supposed to "pop my zits," when she had tried doing so, she was unable to express anything from them. She also said the itching was "driving me nuts."

Physical exam showed several large, follicular papules along the hairline on the back of her neck, around her left hear, and two along the hairline on her forehead. The exam also showed crusting, dry, dark scabs, the result of intense scratching.

Dx: Acne necrotica miliaris

Plan: Treat with mincycline × one month and return to office for follow-up.

First-listed diagnosis: ________
Fill in the blank with correct word.

Answer: Acne necrotica miliaris – L70.2