O70.1 Second degree perineal laceration during delivery

Billable ICD-10-CM code, FY2026.

Applicable to

• Perineal laceration, rupture or tear during delivery as in O70.0, also involving pelvic floor
• Perineal laceration, rupture or tear during delivery as in O70.0, also involving perineal muscles
• Perineal laceration, rupture or tear during delivery as in O70.0, also involving vaginal muscles

Excludes1 (never code together)

• perineal laceration involving anal sphincter (O70.2-)

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)

• 664.11 Second-degree perineal laceration, delivered, with or without mention of antepartum condition (approximate)
• 664.14 Second-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 O70.1

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 O70.1

• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › pelvic › floor
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › perineum, perineal › muscles
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › perineum, perineal › second degree
• Delivery (childbirth) (labor) › complicated › by › laceration (perineal) › vagina, vaginal (deep) (high) (without perineal laceration) › muscles, with perineum
• Injury › pelvis, pelvic (floor) › complicating delivery
• Laceration › pelvic › floor › complicating delivery
• Laceration › perineum › female › during delivery › second degree
• Perforation, perforated (nontraumatic) (of) › pelvic › floor › obstetrical trauma
• Rupture, ruptured › pelvic › floor, complicating delivery
• Tear, torn (traumatic) › pelvic › floor, complicating delivery

Nearby codes

• O70 Perineal laceration during delivery
• O70.0 First degree perineal laceration during delivery
• O70.1 Second degree perineal laceration during delivery (this code)
• 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
• O70.23 Third degree perineal laceration during delivery, IIIc