O91.23
O91.23 — Nonpurulent mastitis associated with lactation
Billable / specific codeICD-10-CM
O91.23 is a billable, specific ICD-10-CM code for nonpurulent mastitis associated with lactation. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Interstitial mastitis associated with lactation
- Lymphangitis of breast associated with lactation
- Mastitis NOS associated with lactation
- Parenchymatous mastitis associated with lactation
Risk adjustment
O91.23 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How O91.23 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to O91.23.
- Puerperal, puerperium›galactophoritis›associated with lactation
- Puerperal, puerperium›mammitis›associated with lactation
- Puerperal, puerperium›mastitis›associated with lactation
- Mastitis›obstetric›associated with›lactation
- Puerperal, puerperium›lymphangitis›breast›associated with lactation
Related codes at this level
Codes that share O91.2. If O91.23 is not quite right, the correct code is usually one of these.
Questions about O91.23
- Is O91.23 a billable ICD-10-CM code?
- Yes. O91.23 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does O91.23 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Complications predominantly related to the puerperium (O85-O92).