G9594 — Patient presented with a minor blunt head trauma and had a head ct ordered for trauma by an emergency care provider
G9594 is a HCPCS Level II code for patient presented with a minor blunt head trauma and had a head ct ordered for trauma by an emergency care provider. It belongs to the Procedures and Professional Services (Temporary) section. Whether Medicare pays it depends on the coverage rule below.
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.
Physician fee schedule statusM
Measurement code. Used for reporting purposes only; never paid.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for G9594
- Long descriptor
- Patient presented with a minor blunt head trauma and had a head ct ordered for trauma by an emergency care provider
- Short descriptor
- Pt mbht hd ct ord ec prov
- Added
- January 1, 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.
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 G9594
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9594 is not quite right, the correct code is very often within a few positions of it.
- G9579No documentation of signed an opioid treatment agreement at least once during opioid therapyterminated
- G9580Door to puncture time of 90 minutes or less
- G9581Door to puncture time of greater than 2 hours for reasons documented by clinician (e.g., patients who are transferred from one institution to another with a known diagnosis of cva for endovascular stroke treatment; hospitalized patients with newly diagnosed cva considered for endovascular stroke treatment)terminated
- G9582Door to puncture time of greater than 90 minutes, no reason given
- G9583Patients prescribed opiates for longer than six weeksterminated
- G9584Patient evaluated for risk of misuse of opiates by using a brief validated instrument (e.g., opioid risk tool, soapp-r) or patient interviewed at least once during opioid therapyterminated
- G9585Patient not evaluated for risk of misuse of opiates by using a brief validated instrument (e.g., opioid risk tool, soapp-r) or patient not interviewed at least once during opioid therapyterminated
- G9593Pediatric patient with minor blunt head trauma classified as low risk according to the pecarn prediction rules
- G9595Patient has documentation of ventricular shunt, brain tumor, or coagulopathy
- G9596Pediatric patient had a head ct for trauma ordered by someone other than an emergency care provider or was ordered for a reason other than traumaterminated
- G9597Pediatric patient with minor blunt head trauma not classified as low risk according to the pecarn prediction rules
- G9598Aortic aneurysm 5.5 - 5.9 cm maximum diameter on centerline formatted ct or minor diameter on axial formatted ct
- G9599Aortic aneurysm 6.0 cm or greater maximum diameter on centerline formatted ct or minor diameter on axial formatted ct
- G9600Symptomatic aaas that required urgent/emergent (non-elective) repairterminated
- G9601Patient discharge to home no later than post-operative day #7terminated
- G9602Patient not discharged to home by post-operative day #7terminated
Questions about G9594
What is HCPCS code G9594?
G9594 is a HCPCS Level II code for patient presented with a minor blunt head trauma and had a head ct ordered for trauma by an emergency care provider. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G9594?
The CMS HCPCS file marks G9594 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.
How is G9594 paid under the physician fee schedule?
G9594 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.