TheoryMedical Coding Study Guide
Study for the Medical Coding with exam topics, practice questions, a free PDF, video walkthrough and timed mock exam links.
How to study for Medical Coding
- Read the topic list so you know what the exam is likely to cover.
- Answer the free practice questions and read every explanation.
- Download the PDF for offline review.
- Use timed mock exams when your untimed practice feels comfortable.
Topics to review
- Safe and effective care environment
- Health promotion and maintenance
- Psychosocial and physiological integrity
- Pharmacology, infection control and patient safety
Try Medical Coding questions now
Q1George, a 32-year-old male hospital to the clinic with weakness, sore arms and legs. He mentions that he has had these symptoms for 6 months. He also mentions the loss of hair texture and bleeding gums on brushing. The physician mentions a lack of Vitamin C in his diet suggesting ascorbic acid deficiency.<br/><br/>What is the correct ICD-10 code for his condition?
Show answer
✓ Correct answer: E54
E54 is the correct code for this case because it codes for ascorbic acid deficiency. As there is a lack of vitamin C in his dietary intake therefore the symptoms relate to ascorbic acid deficiency.<br/><br/>Option A is not correct because E53.0 is used to code for riboflavin deficiency.<br/><br/>Option C is not correct because E53.9 is used to code for Vitamin B deficiency, unspecified.<br/><br/>Option D is not correct because E53.1 is used to code for pyridoxine deficiency.
Q2The patient has olecranon bursitis in an unspecified elbow. <br/><br/>Which of the following is the proper diagnosis code?
Show answer
✓ Correct answer: M70.20.
Because it is the proper code. The other answers cannot be correct because the code does not match with the patient’s issue or the diagnosis. Instead, the other codes match with the same issue for a different limb or a different medical problem altogether. M70.21 is code for olecranon bursitis in the right elbow. M70.22 is code for olecranon bursitis in the left elbow. M70.2 is code for the category of olecranon bursitis.
Q3When reporting the time involved for an anesthesia procedure when do you start and stop the clock? What is the correct answer?
Show answer
✓ Correct answer: Time starts when the patient is in the operating room and the anesthesiologist begins to prepare the patient for the induction of the anesthesia and ends when the anesthesiologist is no longer in attendance after reporting to the nurses in the PACU (post-anesthesia care unit).
Time starts when the anesthesiologist is present when he/she begins to prepare the patient for induction of anesthesia in the operating room (or equivalent area) and ends when the anesthesiologist is no longer in personal attendance.<br/><br/>Answer A is incorrect because the anesthesiologist wasn’t present when the time first began and ended at the end of surgery, not at the end of the anesthesiologist’s attendance.<br/><br/>Answer B is incorrect because the time ended at the surgery end time and not at the end of the anesthesiologist’s attendance.<br/><br/>Answer D is incorrect because the time started before the anesthesiologist was in attendance.
Q4Which anesthesia add-on code is used for anesthesia complicated by utilization of controlled hypotension – 5 extra units?
Show answer
✓ Correct answer: +99135.
+99100: Anesthesia for patient of extreme age (younger than 1 year and older than 70) – 1 extra unit.<br/><br/>+99116: Anesthesia complicated by utilization of total body hypothermia – 5 extra units.<br/><br/>+99135: Anesthesia complicated by utilization of controlled hypotension – 5 extra units.<br/><br/>+99140: Anesthesia complicated by emergency conditions (specify) – 2 extra units.
Q5What is special about services provided in a patient’s home?
Show answer
✓ Correct answer: Answers A and B are both correct about in home patient care services
Both A and B are correct. Services provided within the home by someone part of an agency are considered facility services. Services provided by a physician or provider who is not part of an agency are not facility services, they are termed “non-facility” services.
Q6A patient is being set up with a continuous positive airway pressure (CPAP) machine upon arriving to the unit from the emergency department.<br/><br/>What is the correct code for CPAP ventilation initiation and management?
Show answer
✓ Correct answer: 94660
94660 is the correct code for initiation and management of CPAP ventilation.<br/><br/>Codes 94644 and 94645 are incorrect because these codes refer to continuous inhalation treatment with aerosol medication.<br/><br/>Code 94662 is incorrect because this code is for continuous negative pressure ventilation initiation and management.
Full Medical Coding bank + unlimited mocks
Try 30 questions free. Unlock the complete Medical Coding question bank, every explanation, and unlimited timed mock exams. Practice on any device.
Unlock Medical Coding →