G9437 — Aspirin not prescribed at discharge
G9437 is a HCPCS Level II code for aspirin not prescribed at discharge. It belongs to the Procedures and Professional Services (Temporary) section. It was terminated on December 31, 2016 and is not valid on new claims.
This code has been terminated
CMS terminated G9437 on December 31, 2016. It stays in the file as history — a claim you are auditing from before that date may legitimately carry it — but it must not appear on a new claim. The adjacent codes below are the usual place to look for its replacement.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
The CMS record for G9437
- Long descriptor
- Aspirin not prescribed at discharge
- Short descriptor
- Asp not presc disch
- Added
- January 1, 2015
- Terminated
- December 31, 2016
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
When CMS retired it.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to G9437
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9437 is not quite right, the correct code is very often within a few positions of it.
- G9429Documentation of medical reason(s) for not including pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors (e.g., negative skin biopsies, insufficient tissue, or other documented medical reasons)
- G9430Specimen site other than anatomic cutaneous location
- G9431Pathology report does not include the pt category, thickness, ulceration and mitotic rate, peripheral and deep margin status and presence or absence of microsatellitosis for invasive tumors
- G9432Asthma well-controlled based on the act, c-act, acq, or ataq score and results documented
- G9433Death, permanent nursing home resident or receiving hospice or palliative care any time during the measurement periodterminated
- G9434Asthma not well-controlled based on the act, c-act, acq, or ataq score, or specified asthma control tool not used, reason not given
- G9435Aspirin prescribed at dischargeterminated
- G9436Aspirin not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)terminated
- G9438P2y inhibitor prescribed at dischargeterminated
- G9439P2y inhibitor not prescribed for documented reasons (e.g., allergy, medical intolerance, history of bleed)terminated
- G9440P2y inhibitor not prescribed at dischargeterminated
- G9441Statin prescribed at dischargeterminated
- G9442Statin not prescribed for documented reasons (e.g., allergy, medical intolerance)terminated
- G9443Statin not prescribed at dischargeterminated
- G9448Patients who were born in the years 1945 to 1965terminated
- G9449History of receiving blood transfusions prior to 1992terminated
Questions about G9437
What is HCPCS code G9437?
G9437 is a HCPCS Level II code for aspirin not prescribed at discharge. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G9437?
The CMS HCPCS file marks G9437 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
Is G9437 still valid?
No. G9437 was terminated on December 31, 2016 and should not be used on new claims.