O91.22
Billable codeNonpurulent mastitis associated with the puerperium
The ICD-10 code for nonpurulent mastitis associated with the puerperium is O91.22.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Puerperal interstitial mastitis
- Puerperal lymphangitis of breast
- Puerperal mastitis NOS
- Puerperal parenchymatous mastitis
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- O91.21Nonpurulent mastitis associated with pregnancynon-billable header
- O91.23Nonpurulent mastitis associated with lactation
- O91.22Nonpurulent mastitis associated with the puerperium
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 67522Approximate match
- 67524Approximate match
Associated MS-DRGs
O91.22 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.