HCPCS Level II M1298: Documentation of Patient Pregnancy - OpenPayer

Summary & Overview

HCPCS Level II M1298: Documentation of Patient Pregnancy

HCPCS Level II code M1298 denotes documentation that a patient was pregnant at any time during the measurement period up to and including the current encounter. Recording pregnancy status is a fundamental clinical documentation element that supports quality measurement, care coordination, and appropriate clinical decision-making across outpatient and ambulatory settings. Nationally, accurate capture of pregnancy status influences maternal care measures, eligibility for prenatal services, and population health reporting.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical purpose, common service settings, and the range of payers that typically recognize the code. The publication outlines where this code is most applicable, typical sites of service such as primary care and obstetrics/gynecology clinics, and which payers are relevant for coverage and reporting considerations.

The analysis covers benchmarks and reporting implications tied to pregnancy documentation, recent policy updates affecting maternal documentation practices, and clinical context that explains why systematic recording of pregnancy during the measurement period matters for quality programs and care coordination. Data not available in the input is noted where specific payer policies, associated taxonomies, and ICD-10 pairings are required but not provided.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareM1298HCPCS Level IIpregnancy documentationprenatal careambulatory carequality measurementmedical record documentationmaternal health

Billing Code Overview

HCPCS Level II code M1298 documents patient pregnancy anytime during the measurement period prior to and including the current encounter. This code is used to record that a patient is pregnant at any point in the measurement window, regardless of the reason for the visit.

Service type: Pregnancy documentation / medical record entry reflecting pregnancy status
Typical site of service: Outpatient clinics, primary care offices, obstetrics/gynecology practices, prenatal care settings, and other ambulatory care locations where pregnancy status is assessed or recorded

Clinical & Coding Specifications

Clinical Context

A 28-year-old pregnant patient presents to her primary care clinic for a routine prenatal visit. The clinic documents that the patient is currently pregnant during the measurement period, and this documentation is recorded in the medical record prior to or at the current encounter. Typical workflow: front-desk staff verify pregnancy status during registration; medical assistant updates the problem list and pregnancy status in the EHR; the clinician confirms pregnancy, records estimated gestational age and expected delivery date, adds a pregnancy-related diagnosis to the record, and ensures pregnancy documentation is accessible for quality reporting during the measurement period. This service is used to capture pregnancy documentation any time during the measurement period up to and including the current visit.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when services rendered required substantially greater resources than typical and documentation supports increased complexity related to pregnancy management.
`23`	Unusual anesthesia	Use when anesthesia is medically necessary but unusual circumstances occurred during a procedure in a pregnant patient.

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HCPCS-M1344-MISSING-BASELINE-OR-FOLLOWUP-PAM-SCORE

HCPCS M1344: Missing Baseline or Follow-up Patient Activation Measure

HCPCS-M1486-SNF-ADMISSION-EVALUATION-PERIOD

HCPCS M1486: SNF Admission During Evaluation Period

HCPCS-M1230-REACTIVE-HCV-ANTIBODY-FOLLOW-UP-DEFERRAL

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HCPCS-M1421-DERMATOLOGY-MIPS-VALUE-PATHWAY

HCPCS Level II M1421: Dermatology MIPS Value Pathway

HCPCS-M1428-BILATERAL-ABSENCE-OF-EYES

HCPCS Level II M1428: Bilateral Absence of Eyes

HCPCS-M1155-ANAPHYLAXIS-PNEUMOCOCCAL-VACCINE

HCPCS M1155: Anaphylaxis Due to Pneumococcal Vaccine, Documented

HCPCS-M1489-PATIENT-STATUS-DOCUMENTED

HCPCS M1489: Patient Status Documented

HCPCS-M1167-HOSPICE-ENROLLMENT-OR-HOSPICE-SERVICE-USE

HCPCS M1167: In Hospice or Using Hospice Services During Measurement Period

HCPCS-LEVEL-II-M1255-POSITIVE-PREGNANCY-TEST-NON-OB-VISIT

HCPCS Level II M1255: Positive Pregnancy Test During Non-Obstetric Clinic Visit

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Taxonomy Code	Specialty	Notes
207Q00000X	Obstetrics & Gynecology	Primary specialty documenting pregnancy status and prenatal care.
207RN0002X	Family Medicine	Frequently documents pregnancy in primary care and provides prenatal care in many settings.
208D00000X	Internal Medicine	May document pregnancy status when patients present to internal medicine clinics; coordinates care with OB/GYN.
362K00000X	Certified Nurse Midwife	Midwives routinely document pregnancy status and prenatal care information.
363A00000X	Nurse Practitioner	NPs in outpatient settings commonly document pregnancy and prenatal follow-up.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`Z34.90`	Encounter for supervision of normal pregnancy, unspecified, unspecified trimester	Common code used to document a pregnancy encounter when pregnancy is being supervised without complications.
`Z34.80`	Encounter for supervision of pregnancy with history of infertility, unspecified trimester	Used when pregnancy documentation includes history of infertility affecting prenatal supervision.
`Z33.1`	Pregnant state, incidental	Used to indicate pregnancy status when it is an incidental finding during an encounter.
`O09.90`	Supervision of high-risk pregnancy, unspecified, unspecified trimester	Applied when pregnancy is being supervised as high-risk and needs documentation.
`Z32.01`	Encounter for pregnancy test, urine positive	Used when a positive pregnancy test is documented during the measurement period.
`Z3A.00`	Weeks of gestation not specified	Used to record pregnancy status when gestational age is not documented precisely.
`Z34.00`	Encounter for supervision of normal first pregnancy, unspecified trimester	Specific code for supervision of a first normal pregnancy encounter.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes	Commonly used for routine prenatal visits where pregnancy documentation is confirmed and updated.
`59425`	Antepartum care only; 4-6 visits	Used for antepartum care management across pregnancy visits where pregnancy is documented and tracked.
`99024`	Postoperative follow-up visit, routine; related to global surgical package	May be used for pregnancy-related postoperative follow-up when applicable.
`99078`	Physician educational services in a group setting (patient education)	Used when pregnancy-related counseling or education is provided and documented during the encounter.
`99401`	Preventive medicine counseling and/or risk factor reduction intervention; individual, approximately 15 minutes	Used for counseling services related to pregnancy risk reduction and documented during the visit.

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