Coding Ahead
CasePilot
Medical Coding Assistant
Case2Code
Search and Code Lookup Tool
CareerCenter
Medical Coding Job Board
Log in Register free account

Need help choosing the right code?

Ask CasePilot about procedures, modifiers, bundling, and coding guidance.

Try CasePilot
CPT®
0146U

CPT® Code 0146U
Deleted

Official Description

Drug assay, definitive, 80 or more drugs or metabolites, urine, by quantitative liquid chromatography with tandem mass spectrometry (LC-MS/MS) using multiple reaction monitoring (MRM), with drug or metabolite description, comments including sample validation, per date of service

© Copyright 2026 American Medical Association. All rights reserved.

Short Descr DRUG ASSAY 80+ RX/METABLT
Medium Descr DRUG ASSAY DEF 80+ RX/METABOLITES URINE W/MRM
Long Descr Drug assay, definitive, 80 or more drugs or metabolites, urine, by quantitative liquid chromatography with tandem mass spectrometry (LC-MS/MS) using multiple reaction monitoring (MRM), with drug or metabolite description, comments including sample validation, per date of service
CLIA Waived (QW) No
APC Status Indicator Discontinued Code
Berenson-Eggers TOS (BETOS) none
MUE Not applicable/unspecified.
Date
Action
Notes
2024-01-01 Deleted First appearance of deletion in code book.
2023-06-30 Deleted Code deleted.
2021-01-01 Added First appearance in code book.
2020-01-01 Added Code added.
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"