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O91.23

Billable

Nonpurulent mastitis associated with lactation

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Inflammation of breast tissue without pus formation that develops during breastfeeding.

Coding Tips

  • •This code applies during active lactation; ensure documentation indicates breastfeeding status
  • •Nonpurulent mastitis may progress to abscess; if abscess develops, consider changing to O91.13

Code Hierarchy

└O91Infections of breast associated with pregnancy, the puerperium and lactation└O91.2Nonpurulent mastitis associated with pregnancy, the puerperium and lactation└O91.23Nonpurulent mastitis associated with lactation
└O91.23Nonpurulent mastitis associated with lactation

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