QC

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating single channel monitoring.
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MEDICAL,USA: Acronym that means quarters of coverage. See credits, Social Security .

QD

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating recording and storage in solid state memory by a digital recorder.

QE

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating the prescribed amount of oxygen is less than 1 L per minute (LPM). The Medicare allowed amount will decrease by 50%.

QF

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating the prescribed amount of oxygen exceeds 4 L per minute (LPM) and portable oxygen is prescribed. Monthly the Medicare allowed amount will increase by 50%.

QG

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating the prescribed amount of oxygen is greater than 4 L per minute (LPM).

QH

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating an oxygen-conserving device was used with an oxygen delivery system.

QJ

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating services or items were provided to a prisoner or patient in state or local custody; however, the state or local government, as applicable, meets the requirements in 42 cfr 411.4 (b).

QK

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating medical direction of two, three, or four concurrent anesthesia procedures involving qualified individuals.

QL

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating patient was pronounced dead after an ambulance was called.

QM

1. See quality management (QM) . 2. HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating an ambulance service was provided under arrangement by a provider of services. This modifier is payable under Medicare Part A but not Medicare Part B.