COC (Certified Outpatient Coder (AAPC)) — Free Online Mock Test

COC exam at a glance

COC full-length mock tests

Attempt 50 full-length COC mock tests, each a distinct question set built on the real 100-question, 240-minute pattern — with instant scoring and section-wise analysis. The first 3 are free.

COC key facts & eligibility

Who is eligible for COC?

No strict prerequisite to sit, but AAPC recommends coding education and experience; full (non-apprentice) certification requires two years of coding experience.

Last verified July 2026 against Certified Outpatient Coder (COC) — AAPC. Always confirm current details on the official website before you register.

COC section breakdown

The COC mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. No inter-section breaks — the timer runs continuously.

• COC Full Exam (100 Q)
  100 questions · 240 minutes · ~144 sec/question

COC scoring & marking scheme

Strategy: COC has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.

Scale: COC (pass 70%).

How COC is conducted

• Mode
  Proctored — Wrexa Edge mirrors this with a webcam-based proctoring flow (face detection, room scan, fullscreen lock, tab-switch detection).
• Test format
  Linear / fixed-form — every candidate sees the same number of questions per section.
• Backtracking
  Allowed — you can revisit and change answers within a section.
• Mark for review
  Available — flag tough questions and return to them before submitting the section.

COC time strategy

With 100 questions in 240 minutes, you have about 144 seconds per question on average. Successful candidates aim for the following pacing on each section:

• COC Full Exam (100 Q)
  Target ~144 sec/question. If a question takes more than 216 seconds, mark for review and move on.

Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.

COC topics covered

Across the 50 Wrexa Edge variants of COC, the following topics appear most often (sample distribution from one variant):

COC Full Exam (100 Q)

• ICD-10-CM · 20
• CPT — Modifiers · 15
• Claims / Billing · 11
• CPT — E/M · 7
• ICD-10-PCS · 7
• HCPCS · 6
• IPPS / POA · 5
• CPT — Symbols · 4

COC difficulty calibration

Advanced tier. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep.

AAPC outpatient hospital + ASC coding credential. 100 multiple-choice questions on CPT for facility outpatient services, ICD-10-CM, HCPCS, ED levels, APCs, and OPPS. 4 hours · 70% to pass. · Official language: English.

Verified content — Wrexa Edge's COC bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).

How Wrexa Edge prepares you for COC

• Real test-day interface
  Our cert skin mirrors the actual COC testing software — same timer, palette, tools, and navigation.
• 50 distinct variants
  5000 unique practice questions, each variant a fresh test — not just shuffled options.
• Detailed analytics
  Scaled score, section accuracy, topic-wise heatmap, time-per-question — see where to focus after every attempt.
• Spaced repetition (Notebook)
  Wrong answers and flagged questions flow into an SM-2 spaced-repetition deck so you actually retain what you learn.
• Optional proctoring
  Browser-based face-api detection (no install) — turn it on to simulate real COC test-day conditions.
• Free to start
  No credit card. Sign up, pick a variant, and your first COC mock starts in under a minute.

COC study plan

A phase-by-phase roadmap from your first concept to test-ready. Stretch or compress each phase to fit the time you have before your attempt.

Where COC can take you

A strong COC result opens up these careers and higher-study paths:

• Outpatient facility coder
  Qualifies you for outpatient hospital and ASC facility coding roles.
• Revenue-cycle careers
  A recognised AAPC credential valued across hospital revenue-cycle teams.
• Remote-work potential
  Medical coding is a field with strong remote-work opportunities.
• Career progression
  A base for specialty and auditing credentials within AAPC.

Best books & official prep for COC

• AAPC Certified Outpatient Coder (COC) Study Guide — AAPC
  Built directly around the exam’s outpatient-facility content.
• Current CPT®, ICD-10-CM and HCPCS Level II code books — AMA / CMS
  Required references — know how to navigate them fast, as the exam is open-book.

Official practice: The exam is open-book but time-pressured — tab and annotate your code books and practise locating codes quickly; AAPC’s course and practice exams mirror the format.

Previous-year papers: AAPC provides official practice exams rather than released past papers.

Frequently asked questions

What is the COC exam pattern?

Certified Outpatient Coder (AAPC) contains 100 questions across 1 section: COC Full Exam (100 Q). Total duration is 240 minutes (about 144 seconds per question).

Does COC have negative marking?

No — COC has no negative marking. Each correct answer is worth 1 mark, so attempt every question.

How is COC scored?

Scaled score range: 100 to 1000. COC (pass 70%).

How can I practise COC online for free?

Wrexa Edge gives you 3 free full-length COC mock tests — with instant scoring, detailed explanations and analytics — plus 47 more with Pro. Start practising in under a minute, no card required.

What is the difficulty level of COC?

COC is rated Advanced difficulty on Wrexa Edge. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep. AAPC outpatient hospital + ASC coding credential. 100 multiple-choice questions on CPT for facility outpatient services, ICD-10-CM, HCPCS, ED levels, APCs, and OPPS. 4 hours · 70% to pass. · Official language: English.

How long is the COC exam?

COC runs for 240 minutes total. On Wrexa Edge the timer is enforced exactly as on the real exam — including no inter-section breaks.

What topics are covered in COC?

COC is split into: COC Full Exam (100 Q). Each section is timed and weighted separately. AAPC outpatient hospital + ASC coding credential. 100 multiple-choice questions on CPT for facility outpatient services, ICD-10-CM, HCPCS, ED levels, APCs, and OPPS. 4 hours · 70% to pass. · Official language: English.

What tools or aids are allowed during COC?

No special tools are required. Note: real exam is proctored — Wrexa Edge mirrors this with a webcam-based proctoring flow you can enable.

Is the COC test adaptive?

No — COC is a fixed-form (linear) test. Every candidate sees the same number of questions per section.

How many COC mock tests does Wrexa Edge offer?

Wrexa Edge generates 50 distinct COC variants — each with different question content, not just shuffled options — the first 3 free for everyone and 47 more with Pro. That's 5000 unique practice questions in the real test-day interface.

Is there a free COC test series 2026?

Yes. The Wrexa Edge COC test series for 2026 gives you 3 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.

Are COC previous year question–style papers included?

Every COC mock is modelled on the official exam pattern and the style of previous years' papers — the same 100-question structure, sections and marking — so your practice mirrors the real paper you'll sit.

Which is the best free COC mock test online?

Wrexa Edge's COC mock test replicates the real exam interface, timing and marking scheme, with instant score, section-wise analysis and 50 fresh variants — a strong free choice for 2026 preparation.

Can I take the COC mock test on mobile?

Yes. COC mock tests run in any browser on mobile, tablet or desktop — no app or download needed. Start on your phone and your progress and analytics sync when you sign in.

What is the COC syllabus?

The COC syllabus maps to its 1 section: COC Full Exam (100 Q). Wrexa Edge's mock tests cover the complete syllabus topic by topic — see the topics-covered breakdown above — so you practise every area at real exam difficulty.

What is the eligibility for COC?

No strict prerequisite to sit, but AAPC recommends coding education and experience; full (non-apprentice) certification requires two years of coding experience. Wrexa Edge focuses on realistic COC practice: 3 free full-length mocks in the exact exam pattern, ready whenever you are.

When is the COC exam and how should I prepare?

Official COC exam dates are announced by the conducting body for each cycle — check the latest notification for the current schedule. To be ready, follow a phased study plan and take full-length timed mocks; Wrexa Edge gives you 3 free COC mocks with instant scoring so you can track your readiness week by week.

Related exams & practice tests

Candidates preparing for COC also practise these on Wrexa Edge:

Browse more: All Medical Coding & Billing exams →  ·  All United States exams →  ·  Full exam catalog →

• Cloud & IT certification tests
• Global exam practice tests
• Exam calendar 2026

Ready to ace COC?

Join thousands of candidates practising on Wrexa Edge. Free signup, 50 variants per exam, instant scoring.