ICD-10-CM > O00-O9A > O85-O92 > O91 > O91.2 > O91.22 O91.22 Nonpurulent mastitis associated with the puerperium Billable/Specific Copy Code Copy Description Applicable To Puerperal interstitial mastitisPuerperal lymphangitis of breastPuerperal mastitis NOSPuerperal parenchymatous mastitis