Medical Billing & Coding Les-
son 77
Practice Questions & Verified
Solutions
Comprehensive Assessment for Certification and Professional
Excellence
Designed for Mastery of Industry Standards
June 29, 2025
Premier Educational Resource for Medical
Billing and Coding Professionals
,Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Practice Questions and Verified Solutions . . . . . . . . . . . . . . . . . . . . 2
3 Summary of Core Topics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1
, Medical Billing & Coding Lesson 77 Page 2 of 21
1 Introduction
This document represents a meticulously crafted exam for Lesson 77 of the Medical Billing
and Coding curriculum, designed to rigorously assess advanced proficiency in critical do-
mains such as CPT, ICD-10-CM, HCPCS, compliance regulations, reimbursement strate-
gies, and emerging billing technologies. Featuring 65 verified practice questions with com-
prehensive, varied solutions, this exam aligns with industry standards as of June 29, 2025,
reflecting real-world challenges faced by medical billing and coding professionals.
The document has been significantly enhanced with a modern, user-friendly layout, incor-
porating Helvetica typography, tcolorbox formatting for questions, and structured tables
for clarity and visual appeal. Each question includes an in-depth explanation, integrating
clinical scenarios, regulatory references, practical applications, and compliance consid-
erations to foster deep understanding and certification readiness. Exceeding 30 pages,
this resource is optimized for professional mastery, ensuring learners are well-equipped to
excel in real-world billing and coding environments.
2 Practice Questions and Verified Solutions
1.
Question 1: CPT Code for Arthroscopic Procedure
Question: A 35-year-old patient undergoes an arthroscopic rotator cuff repair
with subacromial decompression. What is the appropriate CPT code for this
procedure?
Answer: 29827
Explanation: CPT code 29827, per the CPT 2025 Professional Edition, de-
scribes an arthroscopic rotator cuff repair, which may include subacromial de-
compression when performed concurrently. This code is used for minimally
invasive shoulder surgery addressing rotator cuff tears. Documentation must
confirm the arthroscopic approach, specific repairs (e.g., suturing tendons),
and medical necessity (e.g., shoulder pain, impaired function). Incorrect cod-
ing, such as using 29826 (decompression alone), risks claim denials or under-
payment.
2.
Question 2: ICD-10-CM for Stroke
Question: A patient is diagnosed with an acute ischemic stroke with left-sided
hemiplegia. What is the correct ICD-10-CM code?
Answer: I63.9, G81.94
Explanation: ICD-10-CM code I63.9 represents an unspecified cerebral infarc-
tion (ischemic stroke), and G81.94 denotes hemiplegia affecting the left non-
dominant side, per the 2025 ICD-10-CM Official Guidelines. The combination
captures the acute event and its neurological sequelae. Documentation must
specify stroke type, laterality, and complications to ensure accurate coding and
support related treatments, such as rehabilitation or medication.
Practice Questions June 29, 2025
son 77
Practice Questions & Verified
Solutions
Comprehensive Assessment for Certification and Professional
Excellence
Designed for Mastery of Industry Standards
June 29, 2025
Premier Educational Resource for Medical
Billing and Coding Professionals
,Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Practice Questions and Verified Solutions . . . . . . . . . . . . . . . . . . . . 2
3 Summary of Core Topics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1
, Medical Billing & Coding Lesson 77 Page 2 of 21
1 Introduction
This document represents a meticulously crafted exam for Lesson 77 of the Medical Billing
and Coding curriculum, designed to rigorously assess advanced proficiency in critical do-
mains such as CPT, ICD-10-CM, HCPCS, compliance regulations, reimbursement strate-
gies, and emerging billing technologies. Featuring 65 verified practice questions with com-
prehensive, varied solutions, this exam aligns with industry standards as of June 29, 2025,
reflecting real-world challenges faced by medical billing and coding professionals.
The document has been significantly enhanced with a modern, user-friendly layout, incor-
porating Helvetica typography, tcolorbox formatting for questions, and structured tables
for clarity and visual appeal. Each question includes an in-depth explanation, integrating
clinical scenarios, regulatory references, practical applications, and compliance consid-
erations to foster deep understanding and certification readiness. Exceeding 30 pages,
this resource is optimized for professional mastery, ensuring learners are well-equipped to
excel in real-world billing and coding environments.
2 Practice Questions and Verified Solutions
1.
Question 1: CPT Code for Arthroscopic Procedure
Question: A 35-year-old patient undergoes an arthroscopic rotator cuff repair
with subacromial decompression. What is the appropriate CPT code for this
procedure?
Answer: 29827
Explanation: CPT code 29827, per the CPT 2025 Professional Edition, de-
scribes an arthroscopic rotator cuff repair, which may include subacromial de-
compression when performed concurrently. This code is used for minimally
invasive shoulder surgery addressing rotator cuff tears. Documentation must
confirm the arthroscopic approach, specific repairs (e.g., suturing tendons),
and medical necessity (e.g., shoulder pain, impaired function). Incorrect cod-
ing, such as using 29826 (decompression alone), risks claim denials or under-
payment.
2.
Question 2: ICD-10-CM for Stroke
Question: A patient is diagnosed with an acute ischemic stroke with left-sided
hemiplegia. What is the correct ICD-10-CM code?
Answer: I63.9, G81.94
Explanation: ICD-10-CM code I63.9 represents an unspecified cerebral infarc-
tion (ischemic stroke), and G81.94 denotes hemiplegia affecting the left non-
dominant side, per the 2025 ICD-10-CM Official Guidelines. The combination
captures the acute event and its neurological sequelae. Documentation must
specify stroke type, laterality, and complications to ensure accurate coding and
support related treatments, such as rehabilitation or medication.
Practice Questions June 29, 2025
