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    v1.0.28
    OpenPayerBilling CodesPregnancy, Childbirth and the PuerperiumDRG 831-other-antepartum-diagnoses-without-o-r-procedures-with-mcc
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    Other Antepartum Diagnoses without O.R. Procedures with MCC: Inpatient Reimbursement Overview

    DRG 831 encompasses inpatient care for nonoperative antepartum diagnoses with a Major Complication or Comorbidity, focusing on significant maternal conditions managed without surgery. This Diagnosis-Related Group matters for inpatient reimbursement because the Major Complication or Comorbidity elevates severity and influences Medicare Severity Diagnosis-Related Group payment rates.

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    DRG 831 Overview

    DRG 831 covers inpatient stays for other antepartum diagnoses where no operating room procedures are performed but a Major Complication or Comorbidity is present. Typical clinical scenarios include significant maternal medical conditions or pregnancy-related complications that require inpatient management without surgery. This Diagnosis-Related Group affects Medicare payment because the presence of a Major Complication or Comorbidity increases the relative severity and resource intensity of the stay. Accurate coding and documentation of the Major Complication or Comorbidity are important for appropriate Medicare Severity Diagnosis-Related Group assignment and reimbursement.

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    Clinical Trials

    • Trials focusing on rapid diagnostic and risk stratification strategies for high-risk antepartum presentations (for example studies evaluating biomarker panels, advanced fetal monitoring protocols, or standardized clinical scoring systems). These studies enroll pregnant patients admitted with acute nonoperative antepartum conditions such as severe preeclampsia spectrum, significant antepartum hemorrhage without immediate need for surgery, or symptomatic placental abnormalities, and assess diagnostic accuracy, time-to-intervention, and prediction of maternal-fetal deterioration. Results are directly relevant to inpatient providers and payers because improved early identification can reduce ICU transfers, length of stay, and escalation of care costs while improving maternal and fetal safety metrics used in reimbursement and quality programs.
    • Comparative effectiveness studies of inpatient medical management strategies for complex antepartum complications (for example trials comparing different antihypertensive regimens, magnesium dosing strategies, or protocols for expectant management versus intensified surveillance in late-preterm or early-term compromised pregnancies). These trials enroll pregnant patients with significant comorbid antepartum diagnoses (MCC-level severity) who do not undergo operative delivery at admission, and measure maternal morbidity, timing of delivery, neonatal outcomes, and resource utilization. Findings inform clinicians and payers about which nonoperative management pathways yield the best balance of clinical outcomes and cost-effectiveness in high-acuity antepartum admissions, guiding clinical pathways and utilization review.
    • Prospective outcomes and healthcare utilization studies following discharge after a high-acuity antepartum admission without surgery (for example observational cohorts tracking readmissions, progression to operative delivery, long-term maternal cardiovascular or mental health sequelae, and neonatal healthcare needs). These studies follow patients admitted with other serious antepartum diagnoses with major complicating conditions to quantify downstream utilization, rehospitalization risk, and infant outcomes through delivery and postpartum. Understanding post-discharge trajectories is critical for payers and health systems to design transitional care, case management, and bundled payment models that reduce preventable readmissions and allocate resources for high-risk pregnant patients appropriately.

    Related Codes

    768-VAGINAL-DELIVERY-WITH-O-R-PROCEDURES-EXCEPT-STERILIZATION-AND-OR-D-C

    Vaginal Delivery with O.R. Procedures Except Sterilization and/or D&C: Inpatient Reimbursement Overview

    769-POSTPARTUM-AND-POST-ABORTION-DIAGNOSES-WITH-O-R-PROCEDURES

    Postpartum and Post Abortion Diagnoses with O.R. Procedures: Inpatient Reimbursement Overview

    770-ABORTION-WITH-D-C-ASPIRATION-CURETTAGE-OR-HYSTEROTOMY

    Abortion with D&C, Aspiration Curettage or Hysterotomy: Inpatient Reimbursement Overview

    776-POSTPARTUM-AND-POST-ABORTION-DIAGNOSES-WITHOUT-O-R-PROCEDURES

    Postpartum and Post Abortion Diagnoses without O.R. Procedures: Inpatient Reimbursement Overview

    779-ABORTION-WITHOUT-D-C

    Abortion without D&C: Inpatient Reimbursement Overview

    783-CESAREAN-SECTION-WITH-STERILIZATION-WITH-MCC

    Cesarean Section with Sterilization with MCC: Inpatient Reimbursement Overview

    784-CESAREAN-SECTION-WITH-STERILIZATION-WITH-CC

    Cesarean Section with Sterilization with CC: Inpatient Reimbursement Overview

    785-CESAREAN-SECTION-WITH-STERILIZATION-WITHOUT-CC-MCC

    Cesarean Section with Sterilization without CC/MCC: Inpatient Reimbursement Overview

    786-CESAREAN-SECTION-WITHOUT-STERILIZATION-WITH-MCC

    Cesarean Section without Sterilization with MCC: Inpatient Reimbursement Overview

    787-CESAREAN-SECTION-WITHOUT-STERILIZATION-WITH-CC

    Cesarean Section without Sterilization with CC: Inpatient Reimbursement Overview

    Showing 1–10 of 22

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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    Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.