Q Modifiers

Q0

Investigational clinical service provided in a clinical research study that is in an approved clinical research study

Q1

Routine clinical service provided in a clinical research study that is in an approved clinical research study

Q2

Demonstration procedure/service

Q3

Live kidney donor surgery and related services

Q4

Service for ordering/referring physician qualifies as a service exemption

Q5

Service furnished by a substitute physician under a reciprocal billing arrangement

Q6

Service furnished by a locum tenens physician

Q7

One class a finding

Q8

Two class b findings

Q9

One class b and two class c findings

QC

Single channel monitoring

QD

Recording and storage in solid state memory by a digital recorder

QE

Prescribed amount of oxygen is less than 1 liter per minute (lpm)

QF

Prescribed amount of oxygen exceeds 4 liters per minute (lpm) and portable oxygen is prescribed

QG

Prescribed amount of oxygen is greater than 4 liters per minute(lpm)

QH

Oxygen conserving device is being used with an oxygen delivery system

QJ

Services/items 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

Medical direction of two, three, or four concurrent anesthesia procedures involving qualified individuals

QL

Patient pronounced dead after ambulance called

QM

Ambulance service provided under arrangement by a provider of services

QN

Ambulance service furnished directly by a provider of services

QP

Documentation is on file showing that the laboratory test(s) was ordered individually or ordered as a cpt-recognized panel other than automated profile codes 80002-80019, g0058, g0059, and g0060.

QS

Monitored anesthesia care service

QT

Recording and storage on tape by an analog tape recorder

QW

Clia waived test

QX

Crna service: with medical direction by a physician

QY

Medical direction of one certified registered nurse anesthetist (crna) by an anesthesiologist

QZ

Crna service: without medical direction by a physician