DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

O70 Perineal laceration during delivery

  • Header · not billable

O70 is not billable. The category heads 9 billable codes in FY2027, grouped under 6 subdivisions.

Index → code

  • Lacerationfourchette → O70.0
  • Rupture, rupturedvulva complicating delivery → O70.0
  • Tear, torn (traumatic)vulva, complicating delivery → O70.0

Where it sits

  1. Chapter 15 Pregnancy, childbirth and the puerperium (O00-O9A)
  2. O60-O77 Complications of labor and delivery (O60-O77)
  3. O70 Perineal laceration during delivery
Billable codes
9
Subdivisions
6
CC / MCC codes
6 / 0
HCC V28 codes
0
New FY2027
0
Index entries
48

Codes in O70

  1. O70.0
    First degree perineal laceration during delivery
    Billable
    Inclusion terms 6

    Inclusion terms

    • 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
  2. O70.1
    Second degree perineal laceration during delivery
    Billable
    Inclusion terms 3, Excludes1 1

    Inclusion terms

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

    Excludes1

    • perineal laceration involving anal sphincter (O70.2-) O70.2
  3. O70.2
    Third degree perineal laceration during delivery
    Header
    Inclusion terms 3, Excludes1 2

    Inclusion terms

    • Perineal laceration, rupture or tear during delivery as in O70.1, also involving anal sphincter O70.1
    • Perineal laceration, rupture or tear during delivery as in O70.1, also involving rectovaginal septum O70.1
    • Perineal laceration, rupture or tear during delivery as in O70.1, also involving sphincter NOS O70.1

    Excludes1

    • anal sphincter tear during delivery without third degree perineal laceration (O70.4) O70.4
    • perineal laceration involving anal or rectal mucosa (O70.3) O70.3
  4. O70.20
    Third degree perineal laceration during delivery, unspecified
    BillableCC
  5. O70.21
    Third degree perineal laceration during delivery, IIIa
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Third degree perineal laceration during delivery with less than 50% of external anal sphincter (EAS) thickness torn
  6. O70.22
    Third degree perineal laceration during delivery, IIIb
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Third degree perineal laceration during delivery with more than 50% external anal sphincter (EAS) thickness torn
  7. O70.23
    Third degree perineal laceration during delivery, IIIc
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Third degree perineal laceration during delivery with both external anal sphincter (EAS) and internal anal sphincter (IAS) torn
  8. O70.3
    Fourth degree perineal laceration during delivery
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Perineal laceration, rupture or tear during delivery as in O70.2, also involving anal mucosa O70.2
    • Perineal laceration, rupture or tear during delivery as in O70.2, also involving rectal mucosa O70.2
  9. O70.4
    Anal sphincter tear complicating delivery, not associated with third degree laceration
    BillableCC
    Excludes1 1

    Excludes1

    • anal sphincter tear with third degree perineal laceration (O70.2-) O70.2
  10. O70.9
    Perineal laceration during delivery, unspecified
    Billable

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At O70

Includes

  • episiotomy extended by laceration

Excludes1

  • obstetric high vaginal laceration alone (O71.4) O71.4

Notes that also apply

Chapter 15 instructions (Notes 6, Excludes1 1, Excludes2 4, Use additional code 1): printed on the chapter 15 page.

Index entries

  • Lacerationfourchette → O70.0
  • Rupture, rupturedvulva complicating delivery → O70.0
  • Tear, torn (traumatic)vulva, complicating delivery → O70.0
  • Lacerationcentral (perineal), complicating delivery → O70.9
  • Lacerationfourchettecomplicating delivery → O70.0
  • Lacerationvulvacomplicating delivery → O70.0
  • Injurypelvis, pelvic (floor)complicating delivery → O70.1
  • Rupture, rupturedpelvicfloor, complicating delivery → O70.1
  • Tear, torn (traumatic)pelvicfloor, complicating delivery → O70.1
  • Lacerationpelvicfloorcomplicating delivery → O70.1
  • Perforation, perforated (nontraumatic) (of)pelvicfloorobstetrical trauma → O70.1
  • Tear, torn (traumatic)anus, anal (sphincter)complicating deliverywith third degree perineal laceration → O70.20
  • Tear, torn (traumatic)anus, anal (sphincter)complicating deliverywithout third degree perineal laceration → O70.4
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal) → O70.9
  • Injuryinstrumental (during surgery)obstetricalperineal NOS → O70.9
  • Lacerationperineumfemaleduring delivery → O70.9
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)fourchette → O70.0
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)hymen → O70.0
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)labia → O70.0
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)vulva → O70.0
  • Lacerationperineumfemaleduring deliveryfirst degree → O70.0
  • Lacerationperineumfemaleduring deliverysecond degree → O70.1
  • Lacerationperineumfemaleduring deliverythird degree → O70.20
  • Lacerationperineumfemaleduring deliveryfourth degree → O70.3
  • Tear, torn (traumatic)anus, anal (sphincter)complicating deliverywith third degree perineal lacerationwith mucosa → O70.3
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)anus (sphincter) → O70.4
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)perineum, perineal → O70.9
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)perineum, perinealfirst degree → O70.0
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)perineum, perinealskin → O70.0
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)perineum, perinealslight → O70.0
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)vagina, vaginal (deep) (high) (without perineal laceration)with perineum → O70.0
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)pelvicfloor → O70.1
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)perineum, perinealmuscles → O70.1
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)perineum, perinealsecond degree → O70.1
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)vagina, vaginal (deep) (high) (without perineal laceration)muscles, with perineum → O70.1
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)anus (sphincter)with third degree laceration → O70.20
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)perineum, perinealthird degree → O70.20
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)rectovaginal (septum) (without perineal laceration)with perineum → O70.20
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)perineum, perinealfourth degree → O70.3
  • Delivery (childbirth) (labor)complicatedbylaceration (perineal)anus (sphincter)without third degree laceration → O70.4

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