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Quizzes > Quizzes for Business > Healthcare

Take the ICD-10 Medical Coding Knowledge Test

Sharpen Your Medical Coding Expertise Fast

Difficulty: Moderate
Questions: 20
Learning OutcomesStudy Material
Colorful paper art depicting a quiz on ICD-10 Medical Coding Knowledge Test

Ready to explore your mastery of diagnosis coding? This free ICD-10 Medical Coding Knowledge Test offers an engaging challenge for students and professionals alike, blending practical scenarios with multiple-choice precision. Those seeking deeper practice can also try the ICD-10 Coding Practice Quiz or refine billing strategies with the Medical Billing and Coding Quiz. In just minutes, participants will gauge their coding accuracy and uncover areas for improvement. Feel free to customize this quiz in our user-friendly editor and explore other quizzes to expand your skills.

Which ICD-10 chapter covers diseases of the circulatory system?
Chapter IX: Diseases of the circulatory system
Chapter VII: Diseases of the eye and adnexa
Chapter XI: Diseases of the digestive system
Chapter I: Certain infectious and parasitic diseases
Chapter IX of ICD-10 covers diseases of the circulatory system. The other chapters listed address infectious, ocular, and digestive conditions respectively.
What is the proper ICD-10 code for Type 2 diabetes mellitus without complications?
E13.9
E11.65
E10.9
E11.9
The code E11.9 indicates Type 2 diabetes mellitus without complications. E10 codes refer to Type 1 diabetes, and E11.65 specifies with hyperglycemia.
For a confirmed diagnosis of acute appendicitis, which ICD-10 code is appropriate?
Z03.89
R10.0
Z00.00
K35.80
K35.80 is the code for acute appendicitis without perforation or abscess. R10.0 is abdominal pain, Z03.89 is observation for suspected conditions, and Z00.00 is a general exam.
The ICD-10 code I10 represents which condition?
Essential (primary) hypertension
Secondary hypertension
Hypertensive heart disease
Hypotension
I10 is the code for essential (primary) hypertension. Secondary hypertension and hypertensive heart disease have different codes, and hypotension is coded elsewhere.
In ICD-10 coding, the decimal point appears after which character position?
After the second character
ICD-10 does not use a decimal point
After the third character
After the fourth character
ICD-10 codes use a letter followed by two numbers, then a decimal point before any additional characters. This standard ensures uniform code structure.
A patient with chest pain is diagnosed with acute myocardial infarction of the inferior wall. Which ICD-10 code is correct?
I21.4
I21.9
I22.2
R07.9
I21.4 specifies an acute myocardial infarction of the inferior wall. I21.9 is unspecified site, I22.2 is subsequent MI, and R07.9 is chest pain unspecified.
Which ICD-10 code corresponds to chronic kidney disease, stage 3 (moderate)?
N18.2
N18.5
N18.3
N18.4
N18.3 specifically denotes stage 3 (moderate) chronic kidney disease. The other N18.x codes represent different CKD stages.
When coding sepsis due to a urinary tract infection, what is the correct sequencing of codes?
N39.0 then A41.89
A41.9 then N39.0
N39.0 then A41.9
A41.89 then N39.0
When sepsis and its underlying infection are present, code the sepsis (A41.9) first followed by the infection code (N39.0 for UTI).
A patient has Type 2 diabetes with chronic kidney disease. Which sequence of codes is correct?
E11.22 then N18.3
E11.9 then N18.3
N18.3 then E11.22
N18.3 then E11.9
Combination code E11.22 identifies Type 2 diabetes with diabetic chronic kidney disease and is sequenced before the CKD stage code N18.3.
What is the ICD-10 code for congenital talipes equinovarus (clubfoot), unspecified foot?
Q68.9
Q65.9
Q66.9
Q67.2
Q66.9 is the code for congenital talipes equinovarus of an unspecified foot. The other codes describe different musculoskeletal anomalies.
Which ICD-10 code represents cellulitis of the left lower limb?
L03.115
L03.117
L03.116
L03.111
L03.116 specifically denotes cellulitis of the left lower limb. L03.115 is right lower limb and the others refer to different sites.
In ICD-10, obstetric codes are found in which chapter?
Chapter XVI
Chapter XI
Chapter XIX
Chapter XV
Chapter XV of ICD-10 covers pregnancy, childbirth, and the puerperium. The other chapters address different body systems or conditions.
For a closed fracture of the right femur, initial encounter, which 7th character should be used?
A (initial encounter)
G (delayed healing)
S (sequela)
D (subsequent encounter)
The 7th character 'A' denotes an initial encounter for a closed fracture. 'D' is for subsequent, 'S' for sequela, and 'G' indicates delayed healing.
A newborn is admitted with low birth weight, unspecified weight. Which ICD-10 code applies?
Z37.0
P07.39
P07.30
P07.32
P07.30 is for low birth weight, unspecified. Z37.0 is liveborn status, P07.32 specifies 1500 - 1999 g, and P07.39 covers 2500 - 2599 g.
Which code category should be used for a stage III pressure ulcer of the sacrum?
L89.1
L89.5
L89.9
L89.3
Category L89.3 covers pressure ulcers of the sacrum at various stages. Specific characters following the decimal denote the stage.
A patient has Type 1 diabetes mellitus with proliferative diabetic retinopathy with macular edema in the right eye. Which ICD-10 code is most specific?
E10.353
E10.351
E10.359
E10.352
E10.351 specifically identifies Type 1 diabetes with proliferative retinopathy and macular edema in the right eye. Other codes designate different laterality or unspecified sites.
A patient presents for aftercare following a hip joint replacement surgery. Which ICD-10 code should be assigned?
Z47.1
Z48.30
Z48.1
Z47.3
Z47.1 denotes aftercare involving joint replacement status. Z48.30 is unspecified aftercare following surgery and Z48.1 is for aftercare following other surgeries.
Which ICD-10 code is invalid because it is missing a required 7th character?
S82.001
S82.101A
S82.201A
S82.001A
S82.001 lacks the required 7th character for encounter type. Codes like S82.001A include the 'A' to denote an initial encounter.
A patient is admitted with diabetic ketoacidosis with hyperosmolarity. Which sequence of codes is correct?
E11.9 then E11.0
E11.0 then E11.10
E11.1 then E11.0
E11.10 then E11.0
When both diabetic ketoacidosis and hyperosmolarity are present, the ketoacidosis code (E11.10) is sequenced first followed by the hyperosmolarity code (E11.0).
A patient's body mass index is documented as 45.2 kg/m². Which ICD-10 code is appropriate?
Z68.45
E66.9
Z68.44
Z68.54
Z68.45 denotes a BMI of 45.0 - 45.9 kg/m². Z68.54 is for a higher BMI range, E66.9 is obesity unspecified, and Z68.44 covers 44.0 - 44.9.
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Learning Outcomes

  1. Analyse clinical scenarios to select accurate ICD-10 codes.
  2. Identify appropriate code categories for various diagnoses.
  3. Apply ICD-10 coding guidelines to real-world case studies.
  4. Evaluate code validity against standardized coding criteria.
  5. Demonstrate proficiency in code sequencing and specificity.
  6. Master common coding pitfalls to improve accuracy.

Cheat Sheet

  1. Master the ICD-10-CM Official Guidelines - Dive into the official rulebook and become the coding whiz who never misses a beat. Knowing these guidelines inside out means fewer errors and smoother audits. CMS ICD-10-CM Guidelines
  2. Understand Code Structure and Conventions - Crack the code by learning why each letter, number, and placeholder exists in ICD-10. It's like decoding a secret message that helps you pick the perfect code every time. CMS Code Structure Guide
  3. Differentiate Between Excludes1 and Excludes2 Notes - Think of Excludes1 as "you-can't-have-this-together" and Excludes2 as "you-can-have-both-if-it's-documented." Get these mixed up and your codes will throw a tantrum! AAPACN Excludes Notes Deep Dive
  4. Apply Combination Codes Appropriately - Why use two codes when one can do the trick? Combination codes bundle a condition and its complication, saving you time and keeping your coding concise. ICDList Combination Codes Guide
  5. Ensure Documentation Supports Code Specificity - Clear, detailed notes are your best friend - without them you're coding blind. Encourage clinicians to paint a full picture so you can choose the most precise code. Outsource Strategies on Documentation
  6. Recognize the Importance of Laterality - Left, right, or both? Laterality matters and can change the code completely. Spot those L's and R's to keep your records accurate and your grades high. Outsource Strategies on Documentation
  7. Distinguish Between Acute and Chronic Conditions - Acute flair-ups deserve top billing, but chronic conditions stick around for the long haul. Learn to list them in the right order for a spot-on clinical picture. ICDList Acute vs. Chronic Guide
  8. Utilize 'Other' and 'Unspecified' Codes Correctly - When details run wild, "other" covers specifics not in the code book; when you really don't know, "unspecified" steps in. Choose wisely to keep audits happy. Outsource Strategies on Documentation
  9. Follow Sequencing Rules for Multiple Codes - Order matters! Always code the root cause first, then its manifestations. A well-ordered list tells the patient's story like a bestselling novel. ICDList Sequencing Rules
  10. Stay Updated with Coding Resources - The coding world evolves faster than your favorite TV series. Bookmark reliable sites and subscribe to updates so you're always coding with the latest scoop. CMS Coding Resources
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