2026 ICD-10-CM Diagnosis Code O36.8990Maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified

ICD-10-CM Codes›O00-O9A›O30-O48›O36

ICD-10-CM O36.8990
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O36.8990 is a billable ICD-10-CM diagnosis code for maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified. The 7th character 0 shows this applies to a single gestation, or that the affected fetus is not identified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 817 through 819, 831 through 833. 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 Maternal care related to fetal conditions.

Code Identity

ICD-10-CM Code
O36.8990
Billable Status
Yes — Valid for Submission
Code Describes
Maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified
Short Description
Maternal care for oth fetal problems, unsp trimester, unsp
Parent Code
O36.899
Maternal care for other specified fetal problems, unspecified trimester

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO30-O48Maternal care related to the fetus and amniotic cavity and possible delivery problems
CategoryO36Maternal care for other fetal problems
This CodeO36.8990Maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified

Code EditsBilling

Medicare Code Editor checks that affect claim validity for O36.8990.

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).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal cardiotochogram tracing
  • Abnormality of fetal heart
  • Anomaly of fetal kidney
  • Antepartum fetal asphyxia
  • Antepartum fetal hypoxia
  • At increased risk of impaired fetal development
  • Bleeding from nose
  • Cardiomegaly
  • Cardiotochogram finding
  • Choroid plexus cyst
  • Closure of fetal arterial duct
  • Common atrioventricular valve stenosis
  • Diabetic cardiomyopathy
  • Diabetic embryopathy
  • Diffuse fetal skin edema
  • Dilatation of fetal renal pelvis
  • Dilatation of renal pelvis
  • Disorder of fetal abdominal region
  • Disorder of fetal myocardium
  • Disorder of fetal nutrition
  • Disorders of fetal movement
  • Distended umbilical veins
  • Dysfunction of right cardiac ventricle
  • Early urethral obstruction sequence
  • Edema of chest wall
  • Edema of fetal chest wall
  • Edema of fetal scalp
  • Exsanguination
  • Failure of growth of fetal left cardiac ventricle
  • Failure of growth of fetal right cardiac ventricle
  • Fetal acidemia affecting management of mother
  • Fetal activity change
  • Fetal AND/OR placental disorder affecting management of mother
  • Fetal anemia
  • Fetal ascites
  • Fetal aspiration pneumonitis
  • Fetal biventricular dysfunction
  • Fetal blood loss from cut end of co-twin's cord
  • Fetal blood loss from placenta
  • Fetal blood loss from ruptured cord
  • Fetal blood loss from vasa previa
  • Fetal cardiac arrest
  • Fetal cardiomegaly
  • Fetal cardiomyopathy
  • Fetal cardiovascular disorder
  • Fetal cephalhematoma
  • Fetal cerebral hemorrhage
  • Fetal choroid plexus cyst
  • Fetal cystic fibrosis
  • Fetal cystic hygroma
  • Fetal damage due to maternal viral infection
  • Fetal damage from maternal infectious disorder
  • Fetal damage from maternal listeriosis
  • Fetal damage from maternal rubella
  • Fetal damage from maternal toxoplasmosis
  • Fetal dilated cardiomyopathy
  • Fetal disorder
  • Fetal disorder caused by chemicals
  • Fetal disorder due to anomaly of placenta
  • Fetal disorder due to compression of umbilical cord
  • Fetal disorder due to disease in mother
  • Fetal disorder due to entanglement of cord
  • Fetal disorder due to long umbilical cord
  • Fetal disorder due to maternal antepartum hemorrhage
  • Fetal disorder due to maternal hemorrhage during pregnancy
  • Fetal disorder due to placental transfusion syndrome
  • Fetal disorder due to short umbilical cord
  • Fetal disorder due to thrombosis of umbilical cord
  • Fetal disorder due to torsion of umbilical cord
  • Fetal disorder due to traumatic injury of umbilical cord
  • Fetal disorder due to true knot of umbilical cord
  • Fetal disorder due to twin-to-twin transfusion syndrome
  • Fetal disorder due to umbilical cord around neck
  • Fetal disorder due to umbilical cord disorder
  • Fetal disorder due to varices of umbilical cord
  • Fetal disorder due to vasa previa of umbilical cord
  • Fetal disorder due to velamentous insertion of umbilical cord
  • Fetal disorder originating in perinatal period
  • Fetal distress - prelabor
  • Fetal distress affecting management of mother
  • Fetal distress-affecting care
  • Fetal dysrhythmia
  • Fetal ecchymoses
  • Fetal endocrine disorder
  • Fetal epilepsy due to perinatal stroke
  • Fetal epistaxis
  • Fetal exposure to teratogenic substance
  • Fetal exsanguination
  • Fetal extradural intracranial hemorrhage
  • Fetal fluid retention
  • Fetal fluid retention restricted to one fetal compartment
  • Fetal fluid retention restricted to two fetal compartments
  • Fetal gastrointestinal abnormality
  • Fetal genitourinary abnormality
  • Fetal head molding
  • Fetal heart disorder
  • Fetal heart failure
  • Fetal heart failure due to extracardiac disease
  • Fetal heart failure with myocardial hypertrophy
  • Fetal heart failure with redistribution of cardiac output
  • Fetal hemoglobinopathy
  • Fetal hemophilia
  • Fetal hemorrhage into co-twin
  • Fetal hemorrhage into ventricle of brain
  • Fetal hereditary disease
  • Fetal hydronephrosis
  • Fetal hypercapnia
  • Fetal hypertrophic cardiomyopathy
  • Fetal hypertrophic cardiomyopathy associated with renal disease
  • Fetal hypertrophic cardiomyopathy due to maternal diabetes mellitus
  • Fetal hypertrophic cardiomyopathy due to twin to twin transfusion syndrome
  • Fetal hypoxia
  • Fetal infection
  • Fetal infection caused by Anaerobic bacterium
  • Fetal infection caused by bacterium
  • Fetal infection caused by Escherichia coli
  • Fetal infection caused by fungus
  • Fetal infection caused by Staphylococcus aureus
  • Fetal infection caused by Streptococcus group B
  • Fetal interstitial neoplasm of lung
  • Fetal intracerebral hematoma
  • Fetal intrauterine intestinal perforation with congenital atresia of intestinal tract
  • Fetal intrauterine perforation of intestine
  • Fetal jaundice caused by substance transmitted from mother
  • Fetal left heart dominance
  • Fetal left ventricular dysfunction
  • Fetal lower urinary tract obstruction
  • Fetal macrocephaly
  • Fetal malformation of central nervous system
  • Fetal mediastinal shift to left
  • Fetal mediastinal shift to right
  • Fetal metabolic disorder
  • Fetal microcephaly
  • Fetal movement activity - finding
  • Fetal mummification
  • Fetal myocarditis
  • Fetal neoplasm
  • Fetal neurodevelopmental disorder
  • Fetal non-traumatic cerebellar hemorrhage
  • Fetal non-traumatic hemorrhage of subarachnoid space of brain
  • Fetal non-traumatic intracerebral hemorrhage
  • Fetal nontraumatic intracranial hemorrhage
  • Fetal nontraumatic intracranial subdural hemorrhage
  • Fetal non-traumatic intraventricular hemorrhage
  • Fetal non-traumatic posterior fossa hemorrhage
  • Fetal parasitic infection
  • Fetal parts not distinguishable per abdomen
  • Fetal pericardial effusion
  • Fetal pleural effusion
  • Fetal pulmonary outflow tract obstruction due to twin to twin transfusion syndrome
  • Fetal purpura
  • Fetal rhabdomyoma
  • Fetal right atrial dilatation
  • Fetal right heart dominance
  • Fetal right ventricular dysfunction
  • Fetal sacral teratoma
  • Fetal sensorineural hearing loss
  • Fetal souffle
  • Fetal subdural intracranial hemorrhage
  • Fetal supraventricular tachycardia with long ventriculoatrial interval
  • Fetal supraventricular tachycardia with short ventriculoatrial interval
  • Fetal tachycardia
  • Fetal trauma
  • Fetal twin anemia-polycythemia sequence
  • Fetal ventricular dysfunction
  • Fetal-maternal hemorrhage
  • Finding of fetal heart sounds
  • Finding of pattern of fetal movement
  • Finding of viability of pregnancy
  • Fixed suture overlap
  • Funisitis
  • Hematoma of brain
  • Hypercapnia
  • Immature fetus
  • Impaired fetal development
  • Increase in velocity of blood flow of coronary artery of fetus
  • Increased fetal nuchal thickness
  • Inflammation of fetal umbilical artery
  • Intrapartum fetal hypoxia
  • Intrauterine asphyxia
  • Intrauterine fetal sepsis
  • Intrauterine hypoxia
  • Intrauterine keratitis
  • Left atrioventricular valve stenosis
  • Left to right flow of foramen ovale of fetal heart
  • Lithopedion
  • Maternal antenatal administration of corticosteroids for fetal lung maturation
  • Maternal history of therapy
  • Mediastinal shift
  • Narrowing of fetal arterial duct
  • Neoplasm of fetal heart
  • Neoplasm of uncertain behavior of sacrococcygeal region
  • Neoplasm of uncertain behavior of sacrum
  • Neoplasm of uncertain behavior of vertebral column
  • Nodular embryo
  • Nonreassuring fetal status
  • Nontraumatic intracranial subdural hemorrhage
  • Non-traumatic intraventricular hemorrhage grade 1 during fetal intrapartum period
  • Non-traumatic intraventricular hemorrhage grade 1 during fetal period
  • Non-traumatic intraventricular hemorrhage grade 2 during fetal intrapartum period
  • Non-traumatic intraventricular hemorrhage grade 2 during fetal period
  • Non-traumatic intraventricular hemorrhage grade 3 during fetal intrapartum period
  • Non-traumatic intraventricular hemorrhage grade 3 during fetal period
  • Non-traumatic intraventricular hemorrhage of fetus and/or neonate
  • Non-viable pregnancy
  • Obstruction of pulmonary outflow tract
  • Obstruction of urethra
  • Overlapping cranial sutures
  • Perinatal hypoxia
  • Placental transfusion syndromes
  • Post-cerebrovascular accident epilepsy
  • Posttraumatic seizure
  • Progression of fetal left ventricular outflow tract obstruction
  • Progression of fetal right ventricular outflow tract obstruction
  • Reducible suture overlap
  • Regurgitation of common atrioventricular valve
  • Regurgitation of fetal aortic valve
  • Regurgitation of fetal common atrioventricular valve
  • Regurgitation of fetal left atrioventricular valve
  • Regurgitation of fetal mitral valve
  • Regurgitation of fetal pulmonary valve
  • Regurgitation of fetal right atrioventricular valve
  • Regurgitation of fetal tricuspid valve
  • Regurgitation of fetal truncal valve
  • Regurgitation of left atrioventricular valve
  • Regurgitation of right atrioventricular valve
  • Rhabdomyoma
  • Right atrial dilatation
  • Right atrial enlargement
  • Right atrioventricular valve stenosis
  • Rupture of cord
  • Sacrococcygeal teratoma
  • Single artery of fetal umbilical cord on obstetric ultrasound scan
  • Stenosis of fetal aortic valve
  • Stenosis of fetal common atrioventricular valve
  • Stenosis of fetal left atrioventricular valve
  • Stenosis of fetal mitral valve
  • Stenosis of fetal pulmonary valve
  • Stenosis of fetal right atrioventricular valve
  • Stenosis of fetal tricuspid valve
  • Stenosis of fetal truncal valve
  • Subperiosteal hematoma
  • Subperiosteal hemorrhage
  • Sutures touching without overlapping
  • Truncal valve regurgitation
  • Truncal valve stenosis
  • Twin-to-twin blood transfer
  • Umbilical hemorrhage
  • Vagitus uterinus

Clinical ClassificationClinical

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

CCSR PRG013
Maternal care related to fetal conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Fetal Hypoxia

    deficient oxygenation of fetal blood.

  • Hypercapnia

    a clinical manifestation of abnormal increase in the amount of carbon dioxide in arterial blood.

  • Rhabdomyoma

    a benign tumor derived from striated muscle. it is extremely rare, generally occurring in the tongue, neck muscles, larynx, uvula, nasal cavity, axilla, vulva, and heart. these tumors are treated by simple excision. (dorland, 27th ed; devita jr et al., cancer: principles & practice of oncology, 3d ed, p1354)

  • Exsanguination

    rapid and extreme blood loss leading to hemorrhagic shock.

  • Cardiomegaly

    enlargement of the heart, usually indicated by a cardiothoracic ratio above 0.50. heart enlargement may involve the right, the left, or both heart ventricles or heart atria. cardiomegaly is a nonspecific symptom seen in patients with chronic systolic heart failure (heart failure) or several forms of cardiomyopathies.

  • Cardiomegaly, Exercise-Induced

    non-pathological heart enlargement and other remodeling in cardiac morphology and electrical circuitry found in individuals who participate in intense repeated exercises.

  • Fetal Blood

    blood of the fetus. exchange of nutrients and waste between the fetal and maternal blood occurs via the placenta. the cord blood is blood contained in the umbilical vessels (umbilical cord) at the time of delivery.

  • Fetal Neurodevelopmental Disorder

    a fetal affliction that has a neurological basis and manifests as a developmental disability.

  • Mediastinal Shift

    displacement of structures in the thoracic cavity in one direction due to increased pleural pressure on the contralateral side.

  • Funisitis

    an acute inflammation of the umbilical cord. it is characterized by the presence of polymorphonuclear cells migrating from the fetal umbilical cord vessels through the umbilical cord towards the bacteria containing amniotic fluid.

  • Necrotizing Funisitis|Sclerosing Funisitis|Sclerosing Funisitis

    a ring of karyorrhectic debris that may exhibit dystrophic mineralization and/or identifiable fetal neutrophil infiltrate in wharton's jelly that is oriented towards the amniotic surface. the cord has a denser ring externally and a fainter ring centrally.

  • Anesthesia and Exsanguination Euthanasia|ANESTHETIZED EXSANGUINATION

    a method of euthanization whereby a subject is anesthetized and the body is drained of blood.

  • Anesthetized Exsanguination and Perfusion Euthanasia|ANESTHETIZED EXSANGUINATION AND PERFUSION|Anesthetized Perfusion

    a method of euthanasia whereby a subject is anesthetized and the blood of the body is replaced by a perfusate.

  • Anesthetized Intracardiac Lethal Injection and Exsanguination Euthanasia|ANESTHETIZED LETHAL INJECTION INTRACARDIAC EXSANGUINATION

    a method of euthanasia whereby a subject is anesthetized, a lethal chemical is administered by intracardiac injection and the body is drained of blood.

  • Anesthetized Intraperitoneal Lethal Injection and Exsanguination Euthanasia|ANESTHETIZED LETHAL INJECTION INTRAPERITONEAL EXSANGUINATION

    a method of euthanasia whereby a subject is anesthetized, a lethal chemical is administered by intraperitoneal injection and the body is drained of blood.

  • Anesthetized Lethal Injection Exsanguination Euthanasia|ANESTHETIZED LETHAL INJECTION EXSANGUINATION

    a method of euthanasia whereby a subject is anesthetized, a lethal chemical is administered by injection and the body is drained of blood.

  • Anesthetized Lethal Injection Intravenous Exsanguination Euthanasia|ANESTHETIZED LETHAL INJECTION INTRAVENOUS EXSANGUINATION

    a method of euthanasia whereby a subject is anesthetized, a lethal chemical is administered by intravenous injection and the body is drained of blood.

  • Captive Bolt and Exsanguination Euthanasia|CAPTIVE BOLT EXSANGUINATION

    a method of euthanasia whereby a subject is shot in the brain with a captive bolt pistol causing immediate and permanent unconsciousness or death, followed by draining the body of blood.

  • Carbon Dioxide and Exsanguination Euthanasia|Asphyxia Exsanguination|CARBON DIOXIDE EXSANGUINATION

    a method of euthanasia whereby a subject inhales carbon dioxide until asphyxiation occurs and then the body is immediately drained of blood.

  • Exsanguination

    extensive loss of blood due to internal or external hemorrhage.

  • Intracardiac Lethal Injection and Exsanguination Euthanasia|LETHAL INJECTION INTRACARDIAC EXSANGUINATION

    a method of euthanasia whereby a subject is given a lethal intracardiac injection and the body is drained of blood.

  • Intraperitoneal Lethal Injection and Exsanguination Euthanasia|LETHAL INJECTION INTRAPERITONEAL EXSANGUINATION

    a method of euthanasia whereby a subject is given a lethal intraperitoneal injection and the body is drained of blood.

  • Intravenous Lethal Injection and Exsanguination Euthanasia|LETHAL INJECTION INTRAVENOUS EXSANGUINATION

    a method of euthanasia whereby a subject is given a lethal intravenous injection and the body is drained of blood.

  • Lethal Injection and Exsanguination Euthanasia|LETHAL INJECTION EXSANGUINATION

    a method of euthanasia whereby a subject is given a lethal injection and the body is drained of blood.

  • Diabetic Embryopathy

    a condition in which the offspring of a mother with diabetes predating pregnancy develops congenital malformations that can affect multiple organ systems including the brain and spinal cord, the heart and major vessels, the kidneys, the gut, and skeletal structures.

Patient EducationClinical

Health Problems in Pregnancy

A health problem in pregnancy is any disease or condition that could affect your health or the health of your fetus. Some health problems may make it more likely that you will have a high-risk pregnancy. A high-risk pregnancy is one in which you, your fetus, or both are at higher risk for health problems than in a typical pregnancy.

The full article covers:

  • What are health problems in pregnancy?
  • What raises my risk for health problems during pregnancy?
  • Can chronic health conditions cause problems in pregnancy?
  • Can health problems in pregnancy be prevented?

Read the full article at MedlinePlus

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

Convert O36.8990 to ICD-9-CMHistory

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

ICD-9-CM
656.80 Fet/plac prob NEC-unspec
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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O36.8990Overview

Is O36.8990 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character 0 in O36.8990 mean?

The final character 0 shows the maternal care for other specified fetal problems, unspecified trimester applies to a single gestation, or that the affected fetus cannot be identified.

What MS-DRG does O36.8990 group to?

When maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 817, 818, 819, 831, 832, 833, with relative weights from 0.5229 to 1.6880 depending on complications. Higher weights mean higher Medicare reimbursement.

Who can O36.8990 be reported for?

The Medicare Code Editor checks maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

What is the ICD-9 equivalent of O36.8990?

Under the General Equivalence Mappings, maternal care for other specified fetal problems, unspecified trimester, not applicable or unspecified converts to ICD-9-CM 656.80 (fet/plac prob NEC-unspec). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.