Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes O00-O9A – Pregnancy, childbirth and the puerperium (O00-O9A) > 2024 ICD-10-CM Codes O85-O92 – Complications predominantly related to the puerperium (O85-O92) > 2024 ICD-10-CM Codes O91 – Infections of breast associated with pregnancy, the puerperium and lactation (O91) > 2024 ICD-10-CM Codes O91.2 – Nonpurulent mastitis associated with pregnancy, the puerperium and lactation (O91.2)