CPT 59850: Inpatient Intra-amniotic Induction and Delivery after 14 Weeks
CPT code 59850 designates an inpatient obstetric procedure for termination of pregnancy after 14 weeks’ gestation by intra-amniotic injection of a saline solution to induce fetal demise, followed by management of labor and delivery of the fetus and placenta with inpatient follow-up until discharge. This code matters nationally because it captures a complex, resource-intensive hospital service that intersects clinical care, maternal health policy, and payer coverage determinations. It is used to document and bill complete care for later-term pregnancy termination managed in a hospital setting.
Key payers in national analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for when this procedure is used (typically after the first trimester), the expected inpatient site of service, and the scope of care represented by the global billing descriptor. The publication also summarizes benchmarking and coverage considerations across major payers, highlights relevant coding practice points for hospital-based obstetric teams, and outlines areas where policy updates and payer-specific rules commonly affect authorization and reimbursement. Data not available in the input are noted where applicable.
Sign up for cpt 59850 policy alerts
Get alerted when payer policies referencing 59850 are released or updated.
Billing Code Overview
CPT code 59850 describes a global obstetric procedure in which the provider induces fetal demise by administering a saline solution into the amniotic sac (intra-amniotic injection). The procedure includes hospital admission, performance of the intra-amniotic injections to cause fetal demise, management of the labor that follows, delivery of the fetus and placenta, and inpatient follow-up until discharge.
-
Service type: Inpatient obstetric procedure for pregnancy termination after the first trimester
-
Typical site of service: Hospital inpatient setting
Clinical & Coding Specifications
Clinical Context
A 29-year-old G2P1 woman at 18 weeks 3 days gestation presents to the labor and delivery unit with a planned second‑trimester termination for fetal anomalies identified on ultrasound. Pre-procedure evaluation includes informed consent, review of ultrasound to confirm gestational age and amniotic fluid volume, Rh typing and administration of Rho(D) immune globulin if indicated, baseline vital signs, and review of anesthesia and surgical risks. The patient is admitted to an inpatient obstetric unit or surgical ward. Under continuous maternal monitoring, the obstetric provider performs intra‑amniotic injection of a hypertonic saline solution to induce fetal demise. The provider documents the injection procedure, monitors for contractions and maternal hemodynamic stability, manages analgesia or anesthesia as needed, and allows labor to progress. When labor is complete, the provider delivers the fetus and placenta, ensures uterine tone and hemostasis, and provides postpartum monitoring and discharge instructions. The typical site of service is an inpatient hospital or designated hospital outpatient department with obstetric capabilities.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Default - no modifier | Use when no special circumstances apply and the full global service is billed |
11 | Normal/uncomplicated service | Use when the procedure is performed without unusual difficulty or complication |
22 | Increased procedural services | Use when the procedure required substantially greater work or time than typical due to complexity or comorbidity |
23 | Unusual anesthesia | Use when anesthesia is medically necessary for reasons other than the procedure itself (e.g., significant anxiety or inability to cooperate) |
50 | Bilateral procedure | Not typically applicable but available if bilateral services are reported in anatomic‑specific situations |
51 | Multiple procedures | Use when reporting this service with other distinct procedures during the same encounter where additional procedure(s) are not bundled |
52 | Reduced services | Use when the service was partially reduced or not completed for documented clinical reasons |
53 | Discontinued procedure | Use when the procedure was started but discontinued due to extenuating circumstances or patient instability |
62 | Two surgeons | Use when two surgeons are present performing distinct portions of the procedure requiring separate expertise |
76 | Repeat procedure by same physician | (Note: 76 is not in provided list; excluded) |
78 | Unplanned return to operating room | Use when the patient requires an unplanned return to the OR/HDU for a related procedure during the global period |
80 | Assistant surgeon | Use when a surgical assistant performs distinct technical services during the procedure |
81 | Minimum assistant surgeon | Use when a minimal assistant provides limited assistance |
82 | Assistant surgeon (qualified resident) | Use when assistant surgeon is a qualified resident or other lower‑level assistant |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207Q00000X | Obstetrics & Gynecology | Primary specialty performing second‑trimester termination and inpatient obstetric management |
2080P0003X | Family Medicine | Family physicians with obstetric privileges may perform terminations in some settings |
207K00000X | Maternal‑Fetal Medicine | Specialists involved for complex fetal anomalies or high‑risk maternal conditions |
163W00000X | Pain Medicine | Consulted for advanced analgesia or anesthesia planning during procedure |
207L00000X | Gynecology | Gynecologists who provide pregnancy termination services in appropriate clinical settings |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
O03.9 | Complete or unspecified spontaneous abortion | Relevant when intra‑amniotic injection is used for pregnancy termination in the second trimester for nonviable pregnancy management |
O36.8XX0 | Maternal care for other specified fetal problems, fetus 0 unspecified | Used when fetal anomaly or problem prompts therapeutic termination; site‑specific fourth characters vary by fetus number and encounter |
O04.9 | Complications following (induced) termination of pregnancy, unspecified | Used if post‑procedure complications arise requiring additional care |
Z33.2 | Encounter for elective termination of pregnancy | Applicable for planned elective second‑trimester terminations when payer allows administrative coding |
Z34.00 | Encounter for supervision of normal first pregnancy, unspecified trimester | (Note: included for context) Not typically used for termination but for pregnancy encounter classification |
O82 | Encounter for cesarean delivery without indication | Not directly relevant to this intra‑amniotic technique but included for overall delivery coding context |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
59409 | Vaginal delivery only (with or without episiotomy, and/or forceps) after attempted induction | May be used as a billing comparator when labor culminates in a vaginal delivery in the inpatient setting; not commonly billed with termination codes |
59000 | Amniotomy, artificial rupture of membranes | May be performed in labor management following intra‑amniotic injection to augment labor |
59425 | Antepartum fetal monitoring, non‑stress test (NST) — initial and subsequent | Used if fetal monitoring is performed during inpatient management prior to confirmed fetal demise (billing depends on coding rules) |
99100 | Anesthesia for emergency procedures | May be reported if emergent anesthesia services are required during the inpatient procedure |
59410 | Vaginal delivery including postpartum care | Not typically appended but listed for clinical workflow context when delivery services are the final outcome |