L03.31 vs O91.2
L03.31 (Cellulitis of trunk) compared with O91.2 (Nonpurulent mastitis associated with pregnancy, the puerperium and lactation), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. L03.31 carries an Excludes2 note covering O91.2: “puerperal cellulitis of breast (O91.2)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| L03.31Cellulitis of trunk | O91.2Nonpurulent mastitis associated with pregnancy, the puerperium and lactation | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99) | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) |
| Definition | Cellulitis of trunk is a non-billable ICD-10-CM category code (L03.31). | Nonpurulent mastitis associated with pregnancy, the puerperium and lactation is a non-billable ICD-10-CM category code (O91.2). |
| Use additional code | code (B95-B97) to identify infectious agent. | code to identify infection |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources