A = Gramm-Rudman reduction required for services (03/2003/1986–09/30/1986) B = Interest addition C = Positive rounding adjustment (due to line-item distribution from total claim reimbursement amount) D = Negative rounding adjustment (due to line-item distribution from total claim reimbursement amount) E = Primary Payer allowed charge F = Payment Reduction (Good cause or Late Billing) G = Payment Reduction (PMDP Demonstration Reduction) H = Payment Reduction (Sequestration Reduction) I = Payment Reduction (ePrescribing Negative Adjustment) J = ACO Payment Adjustment Amount (Pioneer reduction) — the amount that would have been paid if not for the Pioneer reduction — eff. 1/2014 K = Payment Reduction (ASC Quality Reporting Payment Reduction) — eff. 1/2014 L = ACO Payment Adjustment Amount (Pioneer reduction) — the actual amount of the Pioneer reduction — eff. 1/2014 M = Payment Reduction (Physician Quality Reporting System [PQRS] Negative Payment Adjustment) — eff. 1/2015 N = None (no amount to apply) O = Negative or Positive Adjustment (Value Based Modifier [VBM] for reduction) — eff. 1/2015 P = Value Based Payment Modifier (VBM) Positive Payment Adjustment — eff. 1/2015 Q = Electronic Health Record (EHR) Negative Payment Adjustment — eff. 1/2015 R = Part B Drug Payment Model S = Prior Authorization Reduction — eff. 10/2016 T = Comprehensive Primary Care Plus (CPC+) Payment Adjustment — eff. 4/2017 U = Maryland Primary Care Program (MDPCP) Adjustment — eff. 1/2019 V = Positive Amount for Quality Payment Program (QPP) payment adjustment — eff. 1/2019 W = Negative Amount for Quality Payment Program (QPP) payment adjustment — eff. 1/2019 X = Emergency Triage, Treat, and Transport (ET3) Model Payment — to indicate the amount by which each line was adjusted for the 15% bonus payment. — eff. 1/2020 Y = Oncology Care Model Plus (OCM+) Population Based Payment Claims Reductions — eff. 1/2020 A2 = Flat Visit Reduction Amount (PCF Model) A3 = Flat Visit Fee Increased Amount (PCF Model) A4 = KCF Model Reduction Amount A5 = CKCC Model Reduction Amount A6 = Performance Payment Adjustment (PPA) Addition (eff. 1/2022) A7 = Performance Payment Adjustment (PPA) Reduction (eff. 1/2022) A8 = Performance Based Adjustment (PBA) Addition (eff. 4/2022) A9 = Performance Based Adjustment (PBA) Reduction (eff. 4/2022) B1 = PTA/OTA 15% reduction for Therapy (eff.1/2022) B2 = Co-Insurance Reduction Amount (eff. 1/2023)