2026 ICD-10-CM Diagnosis Code Z37.9Outcome of delivery, unspecified

ICD-10-CM Codes›Z00–Z99›Z30-Z39›Z37

ICD-10-CM Z37.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z37.9 is a billable ICD-10-CM diagnosis code for outcome of delivery, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 796 through 798, 805 through 807. The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64), not accepted as a principal diagnosis, and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Maternal outcome of delivery.

Code Identity

ICD-10-CM Code
Z37.9
Billable Status
Yes — Valid for Submission
Code Describes
Outcome of delivery, unspecified
Short Description
Outcome of delivery, unspecified
Same as the full description in the CMS dataset.
Parent Code
Z37
Outcome of delivery

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ30-Z39Persons encountering health services in circumstances related to reproduction
CategoryZ37Outcome of delivery
This CodeZ37.9Outcome of delivery, unspecified

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z37.9.

Maternity diagnoses
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).
Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.
Outcome of delivery diagnoses codes
Outcome of delivery diagnoses codes.

Present on Admission (POA)Billing

Z37.9 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abdominal pregnancy
  • Abnormal delivery
  • Ambulance birth
  • Bilateral lower limb vein thrombophlebitis
  • Birth
  • Birth details not known
  • Born after induced labor
  • Born after precipitate delivery
  • Breech extraction - delivered
  • Caul membrane over baby's head at delivery
  • Cerebral venous sinus thrombosis in puerperium
  • Cerebrovascular disorder in the puerperium
  • Complete spontaneous rupture of fetal umbilical cord
  • Consultant unit birth
  • Delivered by low forceps delivery
  • Delivered by mid-cavity forceps delivery
  • Delivered by mid-cavity forceps with rotation
  • Deliveries by cesarean
  • Deliveries by destructive operation
  • Deliveries by vacuum extractor
  • Delivery by combination of forceps and vacuum extractor
  • Delivery by elective cesarean section
  • Delivery by emergency cesarean section
  • Delivery of viable fetus in abdominal pregnancy
  • Failure to progress in labor
  • Fetal viability
  • Finding of birth outcome
  • Finding of completeness of placenta
  • Finding of contents of cervix
  • Finding of contents of uterus
  • Forceps delivery - delivered
  • Home birth
  • Hospital birth
  • Incomplete placenta at delivery
  • Labor details
  • Livebirth
  • Low pressure headache
  • Monozygotic twins
  • Mother delivered
  • Multiple birth
  • Multiple delivery, all by forceps and vacuum extractor
  • Multiple delivery, all spontaneous
  • Neurological dysfunction due to obstetric fistula
  • Out-of-hospital birth
  • Partial spontaneous rupture of fetal umbilical cord
  • Past pregnancy history of delivery procedure
  • Past pregnancy history of delivery with no details
  • Past pregnancy history of full term delivery
  • Phlebitis in puerperium
  • Place of birth - finding
  • Placental fragments at cervical os
  • Placental fragments in uterus
  • Planned home birth
  • Post dural puncture headache
  • Postpartum hemorrhage
  • Postpartum hemorrhage with retained placenta
  • Premature labor
  • Preterm labor with preterm delivery
  • Products of conception at uterine os cervix
  • Quadruplet birth
  • Quintuplet birth
  • Retained placenta
  • Retained placenta, without hemorrhage
  • Retained placental fragment
  • Retained products of conception with no hemorrhage
  • Retained secundines
  • Retained uterine membrane
  • Retained uterine membrane without hemorrhage
  • Retention of part of placenta and uterine membrane without hemorrhage
  • Retention of part of placenta without hemorrhage
  • Retention of placenta and uterine membrane
  • Rupture of cord
  • Sextuplet birth
  • Spinal and epidural anesthesia-induced headache during labor and delivery
  • Spontaneous rupture of fetal umbilical cord
  • Term birth of multiple newborns
  • Term birth of newborn
  • Term birth of newborn female
  • Term birth of newborn male
  • Term birth of newborn triplets
  • Term birth of newborn twins
  • Term pregnancy delivered
  • Thrombophlebitis in puerperium
  • Thrombophlebitis of bilateral lower limbs in puerperium
  • Triplet birth
  • Unassisted birth
  • Unplanned home birth
  • Vacuum extractor delivery - delivered
  • Varicose veins in puerperium
  • Varicose veins of bilateral lower limbs
  • Varicose veins of bilateral lower limbs in puerperium
  • Varicose veins of genitalia in puerperium
  • Varicose veins of perineum in puerperium
  • Varicose veins of vulva
  • Varicose veins of vulva in puerperium
  • Viable fetus
  • Viable fetus in abdominal pregnancy

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Multiple birth NOS
  • Single birth NOS

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Outcome of delivery
    • Outcome of delivery
      • multiple births
    • Outcome of delivery
      • single NEC
    • Outcome of delivery
      • twins NEC

Clinical ClassificationClinical

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

CCSR PRG030
Maternal outcome of delivery
Default principal diagnosis: inpatient No · outpatient Yes

Clinical InformationClinical

  • Fetal Viability

    the potential of the fetus to survive outside the uterus after birth, natural or induced. fetal viability depends largely on the fetal organ maturity, and environmental conditions.

  • Postpartum Hemorrhage

    excess blood loss from uterine bleeding associated with obstetric labor or childbirth. it is defined as blood loss greater than 500 ml or of the amount that adversely affects the maternal physiology, such as blood pressure and hematocrit. postpartum hemorrhage is divided into two categories, immediate (within first 24 hours after birth) or delayed (after 24 hours postpartum).

  • Early Postpartum Hemorrhage|Primary Postpartum Hemorrhage|Primary Postpartum Hemorrhage

    cumulative blood loss of greater than or equal to 1000 ml or blood loss accompanied by signs or symptoms of hypovolemia within 24 hours following the birth process (includes intrapartum loss). (revitalize)

  • GAIA Level 1 Postpartum Hemorrhage|Global Alignment of Immunization safety Assessment in pregnancy Level 1 Postpartum Hemorrhage|Level 1 Postpartum Haemorrhage

    gaia level 1 postpartum hemorrhage is the presence of genital bleeding after delivery, leading to severe maternal outcome (maternal death or maternal near miss) as defined by who.

  • GAIA Level 2 Postpartum Hemorrhage|Global Alignment of Immunization safety Assessment in pregnancy Level 2 Postpartum Hemorrhage|Level 2 Postpartum Haemorrhage

    gaia level 2 postpartum hemorrhage is defined by the presence of the following criteria: genital bleeding after delivery with at least one of the following: a) measured abnormal bleeding (1000ml or more); or b) any bleeding leading to hypotension or blood transfusion.

  • GAIA Level 3 Postpartum Hemorrhage|Global Alignment of Immunization safety Assessment in pregnancy Level 3 Postpartum Hemorrhage|Level 3 Postpartum Haemorrhage

    gaia level 3 postpartum hemorrhage is defined by the presence of genital bleeding after delivery that is estimated at 1000ml or more.

  • GAIA Postpartum Hemorrhage Level of Diagnostic Certainty Terminology|Global Alignment of Immunization safety Assessment in pregnancy Postpartum Hemorrhage Level of Diagnostic Certainty Terminology

    a subset of terminology related to postpartum hemorrhage, developed by the global alignment of immunization safety assessment in pregnancy consortium to aid in monitoring and improving fetal and maternal outcomes.

  • GAIA Postpartum Hemorrhage Level of Diagnostic Certainty|Global Alignment of Immunization safety Assessment in pregnancy Postpartum Hemorrhage Level of Diagnostic Certainty|Postpartum Hemorrhage Level of Diagnostic Certainty

    a classification of maternal and fetal outcomes relating to postpartum hemorrhage, developed by the global alignment of immunization safety assessment in pregnancy, based on the extent to which the diagnosis has been confirmed.

  • Late Postpartum Hemorrhage|Delayed Postpartum Hemorrhage|Delayed Postpartum Hemorrhage|Secondary Postpartum Hemorrhage|Secondary Postpartum Hemorrhage

    excessive blood loss between 24 hours after delivery through four weeks that requires intervention.

  • Postpartum Hemorrhage

    hemorrhage defined as a blood loss in excess of 500 ml after vaginal delivery or more than 1000 ml after a cesarean delivery.

Patient EducationClinical

Childbirth

Childbirth is the process of giving birth to a baby. It includes labor and delivery of the fetus and the placenta. The placenta is the organ that supplies food and oxygen through the umbilical cord to your fetus during pregnancy.

The full article covers:

  • What is childbirth?
  • How do I know if I'm going into labor?
  • What are the stages of labor?
  • What are the options for pain relief during childbirth?

Read the full article at MedlinePlus

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

Convert Z37.9 to ICD-9-CMHistory

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

ICD-9-CM
V27.9 Outcome of delivery NOS
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z37.9Overview

Is Z37.9 (Outcome of delivery) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report outcome of delivery, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does Z37.9 group to?

On inpatient claims, outcome of delivery, unspecified maps to MS-DRG 796, 797, 798, 805, 806, 807, with relative weights from 0.6742 to 1.1670 depending on complications. Higher weights mean higher Medicare reimbursement.

Can Z37.9 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because outcome of delivery, unspecified describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Who can Z37.9 be reported for?

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

Is Z37.9 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for outcome of delivery, unspecified on inpatient claims.