O70 vs S31.4
O70 (Perineal laceration during delivery) compared with S31.4 (Open wound of vagina and vulva), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. S31.4 carries an Excludes1 note covering O70: “injury to vagina and vulva during delivery (O70.-, O71.4)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| O70Perineal laceration during delivery | S31.4Open wound of vagina and vulva | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header Report instead: S31.40XA, S31.40XD, S31.40XS, S31.41XA, S31.41XD |
| Classification | O00-O9A — Pregnancy, Childbirth and the Puerperium (O00-O9A) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Perineal laceration during delivery is a non-billable ICD-10-CM category code (O70). | Open wound of vagina and vulva is a non-billable ICD-10-CM category code (S31.4). |
| 7th character | — | The appropriate 7th character is to be added to each code from category S31 |
| Includes | episiotomy extended by laceration | injuries to the abdominal wall injuries to the anus injuries to the buttock injuries to the external genitalia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources