Part B Coding Coach: OB-GYN: Pocket This Primer on Preventive Services

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Note:  The following article synopsis was NOT provided by AAPC. It was created by Find-A-Code/innoviHealth.

Article Overview

This Find-A-Code article covers Medicare Part B billing for preventive ob-gyn care when a preventive visit and a separately reportable problem-oriented service occur on the same date. It focuses on how the Medicare carve-out concept affects patient responsibility, how common preventive exam and screening services are reported, and which modifiers and diagnosis pairings are discussed in the example scenarios. The piece is aimed at coders, billers, and ob-gyn practice staff who need a clearer framework for preventive service claims under Medicare.

Why This Topic Matters

Preventive ob-gyn billing can be difficult to separate from other evaluation and management activity, and Medicare rules affect how claims and patient charges are handled. Understanding the article’s scope helps practices avoid incomplete reporting and better anticipate how preventive and covered components may be billed.

Article Sections

  1. Find out how to use Medicare’s ‘carve out’ rule

    Introduces the Medicare carve-out concept in the context of preventive ob-gyn services and same-day evaluation and management work.

  2. Adhere to This Advice for Medicare Carriers

    Reviews a worked example involving preventive exam reporting, related modifiers, and diagnosis pairings discussed in the article.

  3. Here’s How to Calculate Your Fee

    Explains the article’s fee-calculation scenario for separating covered and noncovered portions of a visit under Medicare billing rules.

  4. Take Covered Annual Exam Into Account

    Covers a second example where a Medicare-covered screening component is included in the annual exam and the billing discussion expands to additional reporting considerations.

What You Will Learn

  • How the article frames Medicare preventive-service billing for ob-gyn practices
  • How the carve-out concept is discussed in the context of same-day services
  • Which modifiers and screening services are referenced in the examples
  • How the article approaches patient responsibility calculations for mixed preventive and problem-oriented visits

Who Should Read This

  • Medical coders
  • Medical billers
  • Ob-gyn practice staff
  • Revenue cycle professionals
  • Compliance staff

Codes Discussed

  • CPT: 99397
  • CPT: 99213
  • HCPCS Level II: G0101
  • HCPCS Level II: Q0091
  • HCPCS Level II: GA
  • HCPCS Level II: GY
  • HCPCS Level II: GX
  • CPT: 25
  • ICD-10-CM: Z01.411
  • ICD-10-CM: Z01.419
  • ICD-10-CM: R10.32
  • ICD-10-CM: K92.1

Modifiers Discussed

  • HCPCS Level II: GA
  • HCPCS Level II: GY
  • HCPCS Level II: GX
  • CPT: 25

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