PSI

"Payment status indicator" is a 1- or 2-letter code meaning:

 Code Description
0 Invalid HCPCS code (value of 0)
A Services paid under fee schedule
AA Ambulance fee schedule
AD DMEPOS fee schedule
AL Clinical labs fee schedule
AM Screening mammography
AR Rehabilitation fee schedule
AX Other fee schedule
B Service not allowed under OPPS
C Inpatient service, not paid under OPPS
E Non-covered service, not paid under OPPS
F Corneal, CRNA and hepatitus B
G Drug/biological pass-through
H Pass-through device categories
J New drug/biological, transitional pass-through payment
K Non-pass-through drugs and non-implantable biologicals, including therapeutic radiopharmaceuticals
M Service not billable to the FI/MAC
N Packaged/incidental service
P Partial hospitalization service
Q Packaged service subject to separate payment under OPPS
Q1 STVX-packaged service
Q2 T-packaged service
Q3 Service that may be paid through a composite APC
R Blood and blood products
S Significant procedure, not subject to discounting
T Significant procedure, subject to discounting
U Brachytherapy services
V Clinic or emergency department visit
X Ancillary service
Y Non-implantable DME