2027 ICD-10-CM Diagnosis Code O70.9Perineal laceration during delivery, unspecified

ICD-10-CM Codes›O00-O9A›O60-O77›O70

ICD-10-CM O70.9
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

O70.9 is a billable ICD-10-CM diagnosis code for perineal laceration during delivery, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 769, 776. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under OB-related trauma to perineum and vulva.

Code Identity

ICD-10-CM Code
O70.9
Billable Status
Yes — Valid for Submission
Code Describes
Perineal laceration during delivery, unspecified
Short Description
Perineal laceration during delivery, unspecified
Same as the full description in the CMS dataset.
Parent Code
Perineal laceration during delivery

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO60-O77Complications of labor and delivery
CategoryO70Perineal laceration during delivery
This CodeO70.9Perineal laceration during delivery, unspecified

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O70.9.

The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Central laceration during delivery
  • Genital tear resulting from childbirth
  • Injury of fascia of pelvis
  • Laceration of fascia of pelvis
  • Perineal laceration during delivery
  • Perineal laceration involving rectovaginal septum
  • Perineal laceration involving vagina
  • Trauma to perineum during delivery
  • Trauma to vagina during delivery
  • Traumatic extension of episiotomy
  • Vaginal tear resulting from childbirth

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to O70.9: its own notes plus those printed at O70 and Chapter 15. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From O70 Perineal laceration during delivery applies to 9 codes
  • episiotomy extended by laceration

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From O70 Perineal laceration during delivery applies to 9 codes
  • obstetric high vaginal laceration alone (O71.4)
From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • supervision of normal pregnancy (Z34.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Notes

General instructions on how these codes are used.

From Chapter 15 (O00-O9A) Pregnancy, childbirth and the puerperium applies to 2,481 codes
  • CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • 1st trimester- less than 14 weeks 0 days
  • 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • 3rd trimester- 28 weeks 0 days until delivery

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name O70.9, its category, or a range that includes it.

Excludes1 4

These codes carry an Excludes1 note naming O70.9: they are not reported together with it, unless the two conditions are unrelated.

  • N89.8 Other specified noninflammatory disorders of vagina
    current obstetric trauma (O70.-, O71.4, O71.7-O71.8) names O70.-, which includes this code
  • N90 Other noninflammatory disorders of vulva and perineum
    current obstetric trauma (O70.-, O71.7-O71.8) names O70.-, which includes this code
  • O71.4 Obstetric high vaginal laceration alone
    obstetric high vaginal laceration with perineal laceration (O70.-) names O70.-, which includes this code
  • S31.4 Open wound of vagina and vulva
    injury to vagina and vulva during delivery (O70.-, O71.4) names O70.-, which includes this code

Excludes2 1

These codes carry an Excludes2 note naming O70.9: its condition is not part of those codes, and both may be reported when the patient has both.

  • Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes
    obstetric trauma (O70-O71) names O70-O71, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PRG026
OB-related trauma to perineum and vulva
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Postpartum Care

Taking home a new baby is one of the happiest times in a woman's life. But it also presents both physical and emotional challenges. :

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert O70.9 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
664.41 Ob perineal lac NOS-del
Approximate The match is approximate rather than exact.
ICD-9-CM
664.44 Perineal lac NOS-postpar
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About O70.9Overview

What is the ICD-10 code for perineal laceration during delivery, unspecified?

The ICD-10-CM code for perineal laceration during delivery, unspecified is O70.9 (sometimes written as O709). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is O70.9 (Perineal laceration during delivery) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report perineal laceration during delivery, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does O70.9 group to?

When perineal laceration during delivery, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 769, 776, with relative weights from 0.6718 to 1.6666 depending on complications. Higher weights mean higher Medicare reimbursement.

Who can O70.9 be reported for?

The Medicare Code Editor checks perineal laceration during delivery, unspecified against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

Can O70.9 be reported with O71.4?

Not as a rule. The Excludes1 note at O70, which applies to O70.9, lists "obstetric high vaginal laceration alone (O71.4)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).