Medical Office Assistant · Medical Economics, Billing, and Coding

Upcoding and Downcoding

On this page 3 sections
  1. Quick check
  2. Study tools
  3. Sources & references

Quick check

5 questions here, of 85 in this lesson’s practice set. Answers stay hidden until you check.

Question 1 of 5foundational

Which of the following best describes upcoding?

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Question 2 of 5foundational

Which of the following best describes downcoding?

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Question 3 of 5foundational

Why are both upcoding and downcoding considered compliance problems?

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Question 4 of 5foundational

A practice bills a comprehensive visit when the record supports only a brief visit. This is an example of which coding error?

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Question 5 of 5foundational

The record documents a comprehensive visit, but the claim is submitted at the lowest visit level. This is an example of which coding error?

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Practice all 85

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Study tools & related lessonsYou’ll learn to · Related

You’ll learn to

  • Define upcoding (reporting a higher level of service than the documentation supports) and downcoding (reporting a lower level than documented).
  • Explain why both upcoding and downcoding are compliance problems that make claims inaccurate.
  • Select codes accurately by matching the reported code to the documentation in the medical record.
  • Identify the medical office assistant's role in supporting accurate coding and escalating discrepancies rather than changing codes independently.
  • Recognize common patterns of upcoding and downcoding, including cloned notes, added diagnoses, and payment-driven code changes.

Sources & references

  1. Centers for Medicare & Medicaid Services — CMS.gov
  2. American Health Information Management Association — AHIMA - Health Information and Coding
  3. AAPC — Medical Coding and Billing

This lesson was adapted from the open educational references above; their licenses and attributions are preserved. See Copyright & Licensing.

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