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O91.22

Billable

Nonpurulent mastitis associated with the puerperium

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 occurs after delivery, typically within the first few weeks postpartum.

Coding Tips

  • Puerperium period is approximately 6 weeks postpartum; confirm timing in documentation
  • Nonpurulent indicates absence of abscess; if pus collection is present, use O91.12 instead

Code Hierarchy

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