Medical Coding and Billing Mastery
Guide 2026
A Complete, Up-to-Date System for Accurate Coding, E/M Services,
Telehealth Compliance, and Maximum Reimbursement Success.
MEGAN TAB OR
1
,All rights reserved.
No part of this book may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means electronic, mechanical, photocopying, recording, or otherwise
without prior written permission from the publisher, except for brief quotations in
reviews or articles.
This is a work of nonfiction. Every effort has been made to ensure the accuracy of the
information presented.
However, the author and publisher assume no responsibility for errors, omissions, or
interpretations of the subject matter.
Copyr igh t © 2025 by MEGAN TAB OR
2
, Disclaimer
This book is intended solely for education al an d in for m ation al pur poses . The
content reflects current industry best practices, general guidelines, and professional
insights related to medical coding and billing as applicable to the 2026 period.
While every reasonable effort has been made to ensure the accuracy, completeness, and
reliability of the information presented, the author(s) and publisher make n o
r epr esen tation s or w ar r an ties regarding the accuracy, applicability, or
completeness of the content. Medical coding guidelines, payer requirements,
reimbursement policies, and healthcare regulations, including but not limited to
H IPAA, CMS, CPT®, ICD-10-CM, an d HCPCS Level II , are subject to frequent
updates and revisions. Readers are strongly advised to consult offi cial sour ces,
gover n in g bodies, an d cur r en t policy docum en tation before implementing any
coding or billing practices.
This publication does n ot constitute legal, m edical, fi n an cial, or pr ofession al
com plian ce advice . Readers should seek guidance from cer tifi ed codin g
pr ofession als, licen sed pr actition er s, legal coun sel, or author ized
r egulator y sour ces for advice specific to their individual circumstances.
Any coding examples, case studies, or references included are provided for illustr ative
an d education al pur poses on ly and do not imply endorsement by any regulatory
agency, professional organization, or certifying body.
Use of this book and its contents is entirely at the reader’s discretion and risk. The
author(s), publisher, and affiliated parties assum e n o liability for errors, omissions,
misinterpretations, or any financial, professional, or operational consequences arising
from the use or misuse of the information contained herein.
3
, Table of contents
Disclaimer.................................................................................................................................... 3
Preface........................................................................................................................................ 7
How to Use This Book Effectively............................................................................................7
Why Accurate Medical Coding and Billing Matter....................................................................9
Latest Industry Trends and 2025-2026 Updates....................................................................11
Chapter 1................................................................................................................................... 15
Introduction to Medical Coding & Billing....................................................................................15
What is Medical Coding?.......................................................................................................15
What is Medical Billing?........................................................................................................ 17
Key Differences Between Coding and Billing.........................................................................19
The Role of a Medical Coder vs. a Medical Biller..................................................................21
Overview of the Healthcare Revenue Cycle..........................................................................23
Chapter 2.............................................................................................................................. 28
The Language of Medical Coding & Billing...........................................................................28
Common Terminology in Medical Coding & Billing................................................................28
Common Abbreviations in Claims and Documentation..........................................................32
Key Concepts: Medical Necessity, Audits, Denials................................................................35
Chapter 3................................................................................................................................... 41
Anatomy, Physiology & Medical Terminology Basics.................................................................41
Why Anatomy & Physiology Matter for Coders......................................................................41
Medical Root Words, Prefixes, and Suffixes..........................................................................43
Quick Reference Charts for Body Systems...........................................................................46
Common Diseases and Conditions by System......................................................................48
Chapter 4................................................................................................................................... 55
Diagnostic Coding (ICD-10).......................................................................................................55
Structure of ICD-10 Codes....................................................................................................55
Guidelines for Accurate Diagnosis Coding............................................................................57
Common Pitfalls and Errors in Diagnosis Coding..................................................................60
2025-2026 Updates for Diagnostic Codes.............................................................................62
Chapter 5................................................................................................................................... 69
Procedure Coding (Non-Trademarked Reference)....................................................................69
How to Read and Apply Procedural Codes...........................................................................70
Guidelines for Accurate Procedure Coding...........................................................................73
Office vs. Facility Coding Differences....................................................................................75
Common Procedures and Coding Examples.........................................................................76
2025-2026 Updates in Procedure Coding.............................................................................79
4
Guide 2026
A Complete, Up-to-Date System for Accurate Coding, E/M Services,
Telehealth Compliance, and Maximum Reimbursement Success.
MEGAN TAB OR
1
,All rights reserved.
No part of this book may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means electronic, mechanical, photocopying, recording, or otherwise
without prior written permission from the publisher, except for brief quotations in
reviews or articles.
This is a work of nonfiction. Every effort has been made to ensure the accuracy of the
information presented.
However, the author and publisher assume no responsibility for errors, omissions, or
interpretations of the subject matter.
Copyr igh t © 2025 by MEGAN TAB OR
2
, Disclaimer
This book is intended solely for education al an d in for m ation al pur poses . The
content reflects current industry best practices, general guidelines, and professional
insights related to medical coding and billing as applicable to the 2026 period.
While every reasonable effort has been made to ensure the accuracy, completeness, and
reliability of the information presented, the author(s) and publisher make n o
r epr esen tation s or w ar r an ties regarding the accuracy, applicability, or
completeness of the content. Medical coding guidelines, payer requirements,
reimbursement policies, and healthcare regulations, including but not limited to
H IPAA, CMS, CPT®, ICD-10-CM, an d HCPCS Level II , are subject to frequent
updates and revisions. Readers are strongly advised to consult offi cial sour ces,
gover n in g bodies, an d cur r en t policy docum en tation before implementing any
coding or billing practices.
This publication does n ot constitute legal, m edical, fi n an cial, or pr ofession al
com plian ce advice . Readers should seek guidance from cer tifi ed codin g
pr ofession als, licen sed pr actition er s, legal coun sel, or author ized
r egulator y sour ces for advice specific to their individual circumstances.
Any coding examples, case studies, or references included are provided for illustr ative
an d education al pur poses on ly and do not imply endorsement by any regulatory
agency, professional organization, or certifying body.
Use of this book and its contents is entirely at the reader’s discretion and risk. The
author(s), publisher, and affiliated parties assum e n o liability for errors, omissions,
misinterpretations, or any financial, professional, or operational consequences arising
from the use or misuse of the information contained herein.
3
, Table of contents
Disclaimer.................................................................................................................................... 3
Preface........................................................................................................................................ 7
How to Use This Book Effectively............................................................................................7
Why Accurate Medical Coding and Billing Matter....................................................................9
Latest Industry Trends and 2025-2026 Updates....................................................................11
Chapter 1................................................................................................................................... 15
Introduction to Medical Coding & Billing....................................................................................15
What is Medical Coding?.......................................................................................................15
What is Medical Billing?........................................................................................................ 17
Key Differences Between Coding and Billing.........................................................................19
The Role of a Medical Coder vs. a Medical Biller..................................................................21
Overview of the Healthcare Revenue Cycle..........................................................................23
Chapter 2.............................................................................................................................. 28
The Language of Medical Coding & Billing...........................................................................28
Common Terminology in Medical Coding & Billing................................................................28
Common Abbreviations in Claims and Documentation..........................................................32
Key Concepts: Medical Necessity, Audits, Denials................................................................35
Chapter 3................................................................................................................................... 41
Anatomy, Physiology & Medical Terminology Basics.................................................................41
Why Anatomy & Physiology Matter for Coders......................................................................41
Medical Root Words, Prefixes, and Suffixes..........................................................................43
Quick Reference Charts for Body Systems...........................................................................46
Common Diseases and Conditions by System......................................................................48
Chapter 4................................................................................................................................... 55
Diagnostic Coding (ICD-10).......................................................................................................55
Structure of ICD-10 Codes....................................................................................................55
Guidelines for Accurate Diagnosis Coding............................................................................57
Common Pitfalls and Errors in Diagnosis Coding..................................................................60
2025-2026 Updates for Diagnostic Codes.............................................................................62
Chapter 5................................................................................................................................... 69
Procedure Coding (Non-Trademarked Reference)....................................................................69
How to Read and Apply Procedural Codes...........................................................................70
Guidelines for Accurate Procedure Coding...........................................................................73
Office vs. Facility Coding Differences....................................................................................75
Common Procedures and Coding Examples.........................................................................76
2025-2026 Updates in Procedure Coding.............................................................................79
4
