O91.21

Non-Billable

Nonpurulent mastitis associated with pregnancy

O91.21 should not be used for reimbursement purposes as there are multiple sub-diagnoses that fall under this code. Please refer to the sub-diagnoses below.

Related Diagnoses

  • O91.211Nonpurulent mastitis associated with pregnancy, first trimester
  • O91.212Nonpurulent mastitis associated with pregnancy, second trimester
  • O91.213Nonpurulent mastitis associated with pregnancy, third trimester
  • O91.219Nonpurulent mastitis associated with pregnancy, unspecified trimester