Medical Billing & Coding Lesson 43 Practice Q&A – Already Passed

Medical Billing & Coding Lesson 43

Practice Q&A – Already Passed
Comprehensive Study Guide for Advanced Certification and Professional Excellence
Date: June 29, 2025




Prepared by: Medical Coding Education Team

,Contents
1 Introduction to Medical Billing and Coding – Lesson 43 . . . . . . . . . . . . . 2
1.1 Key Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Advanced Coding Scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Multi-Diagnosis Coding . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Procedure Coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3 Modifier Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1 Key Modifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.2 Application in Practice . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4 Denials Management and Appeals . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.1 Common Denial Reasons . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4.2 Appeal Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5 Compliance and Regulatory Standards . . . . . . . . . . . . . . . . . . . . . . 3
5.1 Key Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5.2 Ethical Coding Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6 Case Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.1 Case Study 1: Cardiac Catheterization . . . . . . . . . . . . . . . . . . . 4
6.2 Case Study 2: Bilateral Hip Replacement . . . . . . . . . . . . . . . . . . 4
6.3 Case Study 3: Diabetic Foot Ulcer with Supplies . . . . . . . . . . . . . 4
6.4 Case Study 4: Colonoscopy with Multiple Procedures . . . . . . . . . . . 5
6.5 Case Study 5: Emergency Appendectomy . . . . . . . . . . . . . . . . . 5
7 Questions and Answers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8 Study Tips and Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19




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, 1 Introduction to Medical Billing and Coding – Lesson 43
Lesson 43 focuses on advanced medical billing and coding concepts, including complex
coding scenarios, modifier applications, denials management, compliance with regulatory
standards, and real-world case studies. This study guide provides 150 verified questions
and answers, each enriched with detailed explanations, clinical context, regulatory refer-
ences, and practical applications to prepare learners for certification exams (e.g., CPC,
CCS, CBCS) and professional practice. The content is aligned with Quizlet resources
and industry standards to ensure accuracy, relevance, and exam readiness.


1.1 Key Objectives
• Master complex coding scenarios involving multiple diagnoses and procedures.

• Apply advanced modifier rules to ensure accurate billing.

• Understand denials management and appeal processes for optimal reimbursement.

• Ensure compliance with HIPAA, False Claims Act, and NCCI edits.

• Analyze real-world case studies to bridge theory and practice.


2 Advanced Coding Scenarios
Lesson 43 emphasizes coding for multifaceted clinical cases, requiring precise application
of ICD-10-CM, CPT, and HCPCS codes.


2.1 Multi-Diagnosis Coding
• Principal Diagnosis: The primary condition treated (e.g., I21.9 for acute myocardial
infarction).

• Secondary Diagnoses: Additional conditions affecting treatment (e.g., E11.9 for
type 2 diabetes).

• Combination Codes: Single codes for related conditions (e.g., E11.22 for diabetes
with chronic kidney disease).


2.2 Procedure Coding
• Multiple Procedures: Use modifiers like -51 for multiple procedures in one session.

• Bundling Rules: Adhere to NCCI edits to avoid unbundling errors.




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