G9820 – Documentation of a chlamydia screening test with proper follow-up
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG9820
- Long description
- Documentation of a chlamydia screening test with proper follow-up
- Short description
- Doc chlam scr test w/follow
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
Z2Undefined codes- Added
- January 1, 2017
- Last change
- January 1, 2017 – No change
Frequently asked questions
What is HCPCS code G9820?
G9820 is a HCPCS Level II code for documentation of a chlamydia screening test with proper follow-up.
Does Medicare cover G9820?
The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby G codes
- G9812 – Patient died including all deaths occurring during the hospitalization in which the operation was performed, even if after 30 days, and those deaths occurring after discharge from the hospital, but within 30 days of the procedure
- G9813 – Patient did not die within 30 days of the procedure or during the index hospitalization
- G9814 – Death occurring during the index acute care hospitalization
- G9815 – Death did not occur during the index acute care hospitalization
- G9816 – Death occurring after discharge from the hospital but within 30 days post procedure
- G9817 – Death did not occur after discharge from the hospital within 30 days post procedure
- G9818 – Documentation of sexual activity
- G9819 – Patients who use hospice services any time during the measurement period
- G9821 – No documentation of a chlamydia screening test with proper follow-up
- G9822 – Patients who had an endometrial ablation procedure during the 12 months prior to the index date (exclusive of the index date)
- G9823 – Endometrial sampling or hysteroscopy with biopsy and results documented during the 12 months prior to the index date (exclusive of the index date) of the endometrial ablation
- G9824 – Endometrial sampling or hysteroscopy with biopsy and results not documented during the 12 months prior to the index date (exclusive of the index date) of the endometrial ablation
- G9825 – Her-2/neu negative or undocumented/unknown
- G9826 – Patient transferred to practice after initiation of chemotherapy
- G9827 – Her2-targeted therapies not administered during the initial course of treatment
- G9828 – Her2-targeted therapies administered during the initial course of treatment
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.