G9799 — Patients with a medication dispensing event indicator of a history of asthma any time during the patient's history through the end of the measure period
G9799 is a HCPCS Level II code for patients with a medication dispensing event indicator of a history of asthma any time during the patient's history through the end of the measure period. It belongs to the Procedures and Professional Services (Temporary) section. It was terminated on December 31, 2020 and is not valid on new claims.
This code has been terminated
CMS terminated G9799 on December 31, 2020. 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 G9799
- Long descriptor
- Patients with a medication dispensing event indicator of a history of asthma any time during the patient's history through the end of the measure period
- Short descriptor
- Med disp evt indic hx asth
- Added
- January 1, 2017
- Terminated
- December 31, 2020
- 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 G9799
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9799 is not quite right, the correct code is very often within a few positions of it.
- G9791Most recent tobacco status is tobacco free
- G9792Most recent tobacco status is not tobacco free
- G9793Patient is currently on a daily aspirin or other antiplatelet
- G9794Documentation of medical reason(s) for not on a daily aspirin or other antiplatelet (e.g., history of gastrointestinal bleed, intra-cranial bleed, idiopathic thrombocytopenic purpura (itp), gastric bypass or documentation of active anticoagulant use during the measurement period)
- G9795Patient is not currently on a daily aspirin or other antiplatelet
- G9796Patient is currently on a high intensity statin therapy
- G9797Patient is not on a high intensity statin therapy
- G9798Discharge(s) for ami between july 1 of the year prior measurement period to june 30 of the measurement periodterminated
- G9800Patients who are identified as having an intolerance or allergy to beta-blocker therapyterminated
- G9801Hospitalizations in which the patient was transferred directly to a non-acute care facility for any diagnosisterminated
- G9802Patients who use hospice services any time during the measurement periodterminated
- G9803Patient prescribed at least a 135 day treatment within the 180-day measurement interval with beta-blockers post-discharge for amiterminated
- G9804Patient was not prescribed at least a 135 day treatment within the 180-day measurement interval with beta-blockers post-discharge for amiterminated
- G9805Patients who use hospice services any time during the measurement period
- G9806Patients who received cervical cytology or an hpv test
- G9807Patients who did not receive cervical cytology or an hpv test
Questions about G9799
What is HCPCS code G9799?
G9799 is a HCPCS Level II code for patients with a medication dispensing event indicator of a history of asthma any time during the patient's history through the end of the measure period. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G9799?
The CMS HCPCS file marks G9799 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 G9799 still valid?
No. G9799 was terminated on December 31, 2020 and should not be used on new claims.