O70.0 First degree perineal laceration during delivery

Billable ICD-10-CM code, FY2026.

Applicable to

• Perineal laceration, rupture or tear involving fourchette during delivery
• Perineal laceration, rupture or tear involving labia during delivery
• Perineal laceration, rupture or tear involving skin during delivery
• Perineal laceration, rupture or tear involving vagina during delivery
• Perineal laceration, rupture or tear involving vulva during delivery
• Slight perineal laceration, rupture or tear during delivery

Applies from O70 Perineal laceration during delivery

Includes

• episiotomy extended by laceration

Excludes1 (never code together)

• obstetric high vaginal laceration alone (O71.4)

MS-DRG index

Defines the logic of DRG(s) 769 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 664.01 First-degree perineal laceration, delivered, with or without mention of antepartum condition (approximate)
• 664.04 First-degree perineal laceration, postpartum condition or complication (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Code annotations containing back-references to O70.0

Back-references to O70

• Type 1 Excludes: N89.8 Other specified noninflammatory disorders of vagina ("current obstetric trauma (O70.-, O71.4, O71.7-O71.8)")
• Type 1 Excludes: N90 Other noninflammatory disorders of vulva and perineum ("current obstetric trauma (O70.-, O71.7-O71.8)")
• Type 1 Excludes: O71.4 Obstetric high vaginal laceration alone ("obstetric high vaginal laceration with perineal laceration (O70.-)")
• Type 1 Excludes: S31.4 Open wound of vagina and vulva ("injury to vagina and vulva during delivery (O70.-, O71.4)")

Diagnosis Index entries for O70.0

• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › fourchette
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › hymen
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › labia
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › perineum, perineal › first degree
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › perineum, perineal › skin
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › perineum, perineal › slight
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › vagina, vaginal (deep) (high) (without perineal laceration) › with perineum
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › vulva
• Laceration › fourchette
• Laceration › fourchette › complicating delivery
• Laceration › perineum › female › during delivery › first degree
• Laceration › vulva › complicating delivery
• Rupture, ruptured › vulva complicating delivery
• Tear, torn (traumatic) › vulva, complicating delivery

Nearby codes

• O70 Perineal laceration during delivery
• O70.0 First degree perineal laceration during delivery (this code)
• O70.1 Second degree perineal laceration during delivery
• O70.2 Third degree perineal laceration during delivery
• O70.20 Third degree perineal laceration during delivery, unspecified
• O70.21 Third degree perineal laceration during delivery, IIIa
• O70.22 Third degree perineal laceration during delivery, IIIb