O70 vs S31.45XD
O70 (Perineal laceration during delivery) compared with S31.45XD (Open bite of vagina and vulva, subsequent encounter), 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. S31.45XD 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 | S31.45XDOpen bite of vagina and vulva, subsequent encounter | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| 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 bite of vagina and vulva, subsequent encounter is a billable ICD-10-CM diagnosis code (S31.45D). |
| 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