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ALL MEDICAL CODES IN CATEGORY Nonpurulent mastitis associated with pregnancy

2025 ICD-10-CM code O91.21

Nonpurulent mastitis associated with pregnancy. This includes gestational interstitial mastitis, gestational lymphangitis of breast, gestational mastitis NOS, and gestational parenchymatous mastitis.

2025 ICD-10-CM code O91.212

Nonpurulent mastitis occurring in the second trimester of pregnancy.