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G8958

G8958Assessment of adequacy of volume management not documented, reason not given

HCPCSActiveBETOS M5B

G8958 is a HCPCS Level II code for assessment of adequacy of volume management not documented, reason not given. 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 G8958

Long descriptor
Assessment of adequacy of volume management not documented, reason not given

The official wording. This is what the code means.

Short descriptor
Assess vol mgmt not doc

CMS's 28-character form, which is what shows up on a remittance advice.

Added
January 1, 2013

When CMS introduced the code.

BETOS
M5B

Berenson-Eggers Type of Service — CMS's own analytic grouping.

Pricing indicator
00 — Not priced by Part B

Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.

Codes adjacent to G8958

HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G8958 is not quite right, the correct code is very often within a few positions of it.

  • G8949Documentation of patient reason(s) for patient not receiving counseling for diet and physical activity (e.g., patient is not willing to discuss diet or exercise interventions to help control blood pressure, or the patient said he/she refused to make these changes)terminated
  • G8950Elevated or hypertensive blood pressure reading documented, and the indicated follow-up is documented
  • G8951Pre-hypertensive or hypertensive blood pressure reading documented, indicated follow-up not documented, documentation the patient is not eligibleterminated
  • G8952Elevated or hypertensive blood pressure reading documented, indicated follow-up not documented, reason not given
  • G8953All quality actions for the applicable measures in the oncology measures group have been performed for this patientterminated
  • G8955Most recent assessment of adequacy of volume management documented
  • G8956Patient receiving maintenance hemodialysis in an outpatient dialysis facility
  • G8957Patient not receiving maintenance hemodialysis in an outpatient dialysis facilityterminated
  • G8959Clinician treating major depressive disorder communicates to clinician treating comorbid conditionterminated
  • G8960Clinician treating major depressive disorder did not communicate to clinician treating comorbid condition, reason not giventerminated
  • G8961Cardiac stress imaging test primarily performed on low-risk surgery patient for preoperative evaluation within 30 days preceding this surgery
  • G8962Cardiac stress imaging test performed on patient for any reason including those who did not have low risk surgery or test that was performed more than 30 days preceding low risk surgery
  • G8963Cardiac stress imaging performed primarily for monitoring of asymptomatic patient who had pci within 2 yearsterminated
  • G8964Cardiac stress imaging test performed primarily for any other reason than monitoring of asymptomatic patient who had pci within 2 years (e.g., symptomatic patient, patient greater than 2 years since pci, initial evaluation, etc)terminated
  • G8965Cardiac stress imaging test primarily performed on low chd risk patient for initial detection and risk assessmentterminated
  • G8966Cardiac stress imaging test performed on symptomatic or higher than low chd risk patient or for any reason other than initial detection and risk assessmentterminated

Questions about G8958

What is HCPCS code G8958?

G8958 is a HCPCS Level II code for assessment of adequacy of volume management not documented, reason not given. It sits in the Procedures and Professional Services (Temporary) section.

Does Medicare cover G8958?

The CMS HCPCS file marks G8958 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 G8958 paid under the physician fee schedule?

G8958 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.

HCPCS Level II2026Q3-Jul· effective July 1, 2026