O66.9 is a billable diagnosis code used to specify a medical diagnosis of obstructed labor, unspecified. The code O66.9 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code O66.9 might also be used to specify conditions or terms like fetal dystocia, intrapartum hemorrhage, intrapartum hemorrhage co-occurrent and due to obstructed labor with uterine rupture, maternal dystocia, obstructed labor , puerperal sepsis, etc.
The code O66.9 is applicable to female patients aged 12 through 55 years inclusive. It is clinically and virtually impossible to use this code on a non-female patient outside the stated age range.
Unspecified diagnosis codes like O66.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code O66.9:
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Dystocia NOS
- Fetal dystocia NOS
- Maternal dystocia NOS
Entries in the Index to Diseases and Injuries with references to O66.9
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code O66.9 are found in the index:
- - Delivery (childbirth) (labor)
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Fetal dystocia
- Intrapartum hemorrhage
- Intrapartum hemorrhage co-occurrent and due to obstructed labor with uterine rupture
- Maternal dystocia
- Obstructed labor
- Puerperal sepsis
- Rupture of uterus during labor
- Sepsis following obstructed labor
- Vesicovaginal fistula
- Vesicovaginal fistula with involvement of urinary continence mechanism due to and following obstructed labor
Diagnostic Related Groups - MS-DRG Mapping
|MS-DRG||MS-DRG Title||MCD||Relative Weight|
|817||OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH MCC||14||2.3018|
|818||OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITH CC||14||1.3165|
|819||OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURES WITHOUT CC/MCC||14||0.9979|
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert O66.9 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code O66.9 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include
- Preterm (premature) labor, when your labor starts before 37 completed weeks of pregnancy
- Premature rupture of membranes (PROM), when your water breaks too early. If labor does not start soon afterwards, this can raise the risk of infection.
- Problems with the placenta, such as the placenta covering the cervix, separating from the uterus before birth, or being attached too firmly to the uterus
- Labor that does not progress, meaning that labor is stalled. This can happen when
- Your contractions weaken
- Your cervix does not dilate (open) enough or is taking too long to dilate
- The baby is not in the right position
- The baby is too big or your pelvis is too small for the baby to move through the birth canal
- Abnormal heart rate of the baby. Often, an abnormal heart rate is not a problem. But if the heart rate gets very fast or very slow, it can be a sign that your baby is not getting enough oxygen or that there are other problems.
- Problems with the umbilical cord, such as the cord getting caught on the baby's arm, leg, or neck. It's also a problem if cord comes out before the baby does.
- Problems with the position of the baby, such as breech, in which the baby is going to come out feet first
- Shoulder dystocia, when the baby's head comes out, but the shoulder gets stuck
- Perinatal asphyxia, which happens when the baby does not get enough oxygen in the uterus, during labor or delivery, or just after birth
- Perineal tears, tearing of your vagina and the surrounding tissues
- Excessive bleeding, which can happen when the delivery causes tears to the uterus or if you are not able to deliver the placenta after you give birth to the baby
- Post-term pregnancy, when your pregnancy lasts more than 42 weeks
If you have problems in childbirth, your health care provider may need to give you medicines to induce or speed up labor, use tools to help guide the baby out of the birth canal, or deliver the baby by Cesarean section.
NIH: National Institute of Child Health and Human Development
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|ICD Code||Description||Valid for Submission|
|O66||Other obstructed labor||NON-BILLABLE CODE|
|O66.0||Obstructed labor due to shoulder dystocia||BILLABLE CODE|
|O66.1||Obstructed labor due to locked twins||BILLABLE CODE|
|O66.2||Obstructed labor due to unusually large fetus||BILLABLE CODE|
|O66.3||Obstructed labor due to other abnormalities of fetus||BILLABLE CODE|
|O66.4||Failed trial of labor||NON-BILLABLE CODE|
|O66.40||Failed trial of labor, unspecified||BILLABLE CODE|
|O66.41||Failed attempted vaginal birth after previous cesarean delivery||BILLABLE CODE|
|O66.5||Attempted application of vacuum extractor and forceps||BILLABLE CODE|
|O66.6||Obstructed labor due to other multiple fetuses||BILLABLE CODE|
|O66.8||Other specified obstructed labor||BILLABLE CODE|