O91.23
Billable codeNonpurulent mastitis associated with lactation
The ICD-10 code for nonpurulent mastitis associated with lactation is O91.23.
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.
- Interstitial mastitis associated with lactation
- Lymphangitis of breast associated with lactation
- Mastitis NOS associated with lactation
- Parenchymatous mastitis associated with lactation
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
- O91.22Nonpurulent mastitis associated with the puerperium
- O91.23Nonpurulent mastitis associated with lactation
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 67582Approximate match
- 67584Approximate match
- 67580Approximate match
- 67581Approximate match
- 67583Approximate match
- 67590Approximate match
- 67591Approximate match
- 67592Approximate match
- 67593Approximate match
- 67594Approximate match
Associated MS-DRGs
O91.23 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.