TH HCPCS Level II modifier: Obstetrical treatment/services, prenatal or postpartum
TH is a HCPCS Level II modifier: “Obstetrical treatment/services, prenatal or postpartum.” It adds this detail to the code it is reported with.
Official description
THObstetrical treatment/services, prenatal or postpartum
Short description: Ob tx/srvcs prenatl/postpart
HCPCS · United States
Medicare details
The indicators CMS publishes with TH in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- Added
- Jul 1, 2001
Where TH sits
- 1GroupHCPCS modifiers
- 2Modifier THObstetrical treatment/services, prenatal or postpartum
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code TH mean?
TH is the HCPCS code for “Obstetrical treatment/services, prenatal or postpartum” in CMS’s HCPCS Level II October 2026 release.
Where is TH in the HCPCS Level II list?
TH is listed under Modifiers.
Does Medicare cover TH?
CMS lists TH’s Medicare coverage as “Not payable by Medicare”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside TH
All modifiersTBDrug or biological acquired with 340b drug pricing program discount, reported for informational purposesTCTechnical component; under certain circumstances, a charge may be made for the technical component alone; under those circumstances the technical component charge is identified…TDRnTELpn/lvnTFIntermediate level of careTGComplex/high tech level of careTJProgram group, child and/or adolescentTKExtra patient or passenger, non-ambulanceTLEarly intervention/individualized family service plan (ifsp)TMIndividualized education program (iep)TNRural/outside providers' customary service areaTPMedical transport, unloaded vehicle