Z39.2 Insurance Policy Changes

ICD-10 Z39.2 is officially defined as "Encounter for routine postpartum follow-up." code Z39.2 is referenced in 10 tracked payer policy changes from Medi-Cal, South Dakota Medicaid, and 5 other payers. For billers and coders, staying current on payer-specific coverage criteria, reimbursement rules, and prior-authorization requirements for code Z39.2 is critical to clean claim submission. Each entry below links to the full policy analysis with effective dates and action steps.

Medi-Cal · Effective Nov 1, 2026High impact
Reminder: Obstetrical Providers Encouraged to Use E&M Codes with Modifier TH
Effective November 1, 2026, Medi-Cal encourages obstetrical providers to submit claims for prenatal and postpartum care using E&M codes (99204, 99205, 99213, 99214, 99215) with modifier TH instead of global obstetric codes. This change anticipates the AMA's January 1, 2027 replacement of the global obstetric CPT code structure, allowing separate identification of antepartum, labor, delivery, and postpartum services. Claims must include appropriate gestational age ICD-10 codes (Z3A.00-49 for prenatal) or postpartum codes (O86-O92, Z39.0-2, F53.0-1).
Medi-Cal · Effective Nov 1, 2026High impact
Obstetrical Providers Encouraged to Use E&M Codes with Modifier TH
Effective November 1, 2026, Medi-Cal encourages obstetrical providers to bill prenatal and postpartum care using E&M codes (99204, 99205, 99213, 99214, 99215) with modifier TH instead of global obstetric codes. This change aligns with upcoming AMA coding framework changes (effective January 1, 2027) that separately identify antepartum, labor, delivery, and postpartum services. Prenatal claims must include gestational age codes (Z3A.00-Z3A.49); postpartum claims must include relevant postpartum diagnosis codes (O86-O92, Z39.0-Z39.2, or F53.0-F53.1).
South Dakota Medicaid · Identified Sep 12, 2026High impact
Obstetrical Services Billing Changes
South Dakota Medicaid allows obstetrical services to be billed individually, per encounter and per delivery, through December 31, 2026, instead of using global codes. If any pregnancy-related service in an episode falls on or after January 1, 2027, the whole episode must be billed individually, and global claims already submitted must be voided and resubmitted within the timely filing period.
Aetna · Identified Aug 19, 2026Medium impact
Home Births (CPB 0329, reviewed 2026-05-21)
Historical (last reviewed 05/21/2026): Aetna considers planned deliveries at home and associated services not medically appropriate. Coverage of home births will be considered only when mandated by law under plans subject to state mandates. The listed vaginal and cesarean delivery codes, newborn care in a setting other than a hospital or birthing center, nursing care in the home, and certain pregnancy and postpartum diagnosis codes are marked not covered for planned deliveries at home.
Aetna · Identified Aug 17, 2026Medium impact
Herpes Simplex Virus - Screening and Diagnosis (CPB 0433, reviewed 2026-07-01)
Aetna considers serologic assay screening for antibodies to HSV-1 or HSV-2 in asymptomatic members, including those who are pregnant, experimental, investigational, or unproven because its effectiveness has not been established. The HSV CPT codes 86694, 86695, 86696, 87273, 87274, 87483, 87528 and 87529 are covered only when selection criteria are met, and 87483 and 87529 are not covered for asymptomatic members. CPT 87530 (HSV quantification) is not covered for the indications listed, and for HSV diagnosis in persons with active lesions or symptoms, qualitative PCR testing in CPB 0650 applies.
Health Net · Identified Jun 20, 2026Medium impact
20-552 Earn Incentives through the Prop 56 VBP Program
Health Net's Prop 56 Value-Based Payment (VBP) program pays add-on payments to Medi-Cal providers in Fresno, Kings and Madera counties for meeting specific measures in prenatal and postpartum care, early childhood care, chronic disease management and behavioral health integration. Payments apply to services performed on or after July 1, 2019, when submitted as a clean claim or encounter within one year from the date of service with a qualifying CPT and/or ICD-10 code. Payment amounts are higher for at-risk members, for example $70 for a prenatal care visit and $105 for an at-risk prenatal care visit, and $80 for diabetes care and $120 for at-risk diabetes care.
Health Net · Identified Jun 20, 2026Medium impact
20-554 Earn Incentives through the Prop 56 VBP Program
Health Net's Prop 56 Value-Based Payment (VBP) program pays add-on payments to Medi-Cal providers in Kern, Los Angeles, Riverside, Sacramento, San Bernardino, San Diego, San Joaquin, Stanislaus and Tulare counties for meeting specific measures in prenatal and postpartum care, early childhood care, chronic disease management and behavioral health integration. Payments apply to services performed on or after July 1, 2019, when submitted as a clean claim or encounter within one year from the date of service with a qualifying CPT and/or ICD-10 code. Payment amounts are higher for at-risk members, for example $70 for a prenatal care visit and $105 for an at-risk prenatal care visit, and $80 for diabetes care and $120 for at-risk diabetes care.
Medical Mutual of Ohio · Identified Jun 20, 2026Medium impact
Proper Documentation and Coding to Accurately Capture HEDIS PPC Measure
Medical Mutual of Ohio has released new documentation and coding requirements to improve capture of HEDIS PPC (Prenatal and Postpartum Care) measures. Billing teams must ensure prenatal visit codes are accompanied by pregnancy diagnosis codes and use specific CPT/ICD-10 codes for prenatal and postpartum care to reduce chart review requirements.
Blue Cross Blue Shield of Rhode Island · Identified Jun 20, 2026Medium impact
Hints for HEDIS
This HEDIS quality measure guidance provides specific CPT, HCPCS, and ICD-10 codes for documenting prenatal and postpartum care visits to ensure proper quality reporting. It outlines timing requirements (first trimester prenatal visits, postpartum visits between 7-84 days after delivery) and acceptable documentation standards.
Blue Cross of Idaho · Identified Jun 19, 2026Medium impact
One to One for Healthcare Providers - Spring 2022
Effective April 15, 2022, Blue Cross of Idaho will reinstate all authorization requirements and processes under PAP241, and all skilled nursing facility stays must go through the full authorization process with no automatic authorization of the first seven days. Prenatal and postpartum visits have listed CPT, CAT II, HCPCS and ICD-10-CM codes for billing, and submitting additional procedural and diagnostic codes separate from the payment bundle lets the plan identify pregnant members early. Beginning June 2022, Blue Cross of Idaho will rely on NPPES as the system of record for individual practitioner names, and a name that does not match NPPES may change the provider profile and provider directory listing.

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FREQUENTLY ASKED QUESTIONS

What insurance policy changes affect code Z39.2?

There are 10 tracked policy changes affecting code Z39.2, including updates from Medi-Cal, South Dakota Medicaid, Aetna. Each change may modify coverage criteria, reimbursement rates, or prior-authorization requirements.

Which payers have updated policy for code Z39.2?

Payers that have issued tracked updates for code Z39.2 include: Medi-Cal, South Dakota Medicaid, Aetna, Health Net, Medical Mutual of Ohio, Blue Cross Blue Shield of Rhode Island, Blue Cross of Idaho.

How do I get notified when code Z39.2 policy changes?

Create a free account at PolicyChanges.app and save a search filtered to code Z39.2. You will get an email when new policy changes reference this code: daily or weekly, your choice, on every plan.

Why do payers change policies for code Z39.2?

Payers revise policies for individual billing codes to align with updated clinical guidelines, CMS rule changes, fraud and abuse prevention measures, or network cost-management goals. Changes can affect medical necessity criteria, place-of-service restrictions, bundling rules, or whether a code requires prior authorization.

All billing codes J3590 C9399 J3490 99215 99213 99202

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Reminder: Obstetrical Providers Encouraged to Use E&M Codes with Modifier TH

Obstetrical Providers Encouraged to Use E&M Codes with Modifier TH

Obstetrical Services Billing Changes

Home Births (CPB 0329, reviewed 2026-05-21)

Herpes Simplex Virus - Screening and Diagnosis (CPB 0433, reviewed 2026-07-01)

20-552 Earn Incentives through the Prop 56 VBP Program

20-554 Earn Incentives through the Prop 56 VBP Program

Proper Documentation and Coding to Accurately Capture HEDIS PPC Measure

Hints for HEDIS

One to One for Healthcare Providers - Spring 2022

What insurance policy changes affect code Z39.2?

Which payers have updated policy for code Z39.2?

How do I get notified when code Z39.2 policy changes?

Why do payers change policies for code Z39.2?