O91

Classification

Category:Pregnancy, childbirth and the puerperium

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Coding Guidance

O91 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail.

Excludes 1

Excludes 2

Use Additional Code

More Specific Codes

O91.0

Infection of nipple associated with pregnancy, the puerperium and lactation

O91.1

Abscess of breast associated with pregnancy, the puerperium and lactation

O91.2

Nonpurulent mastitis associated with pregnancy, the puerperium and lactation

External Resources

2025 ICD-10 guidelines from CMS.gov