Outpatient CDI vs. Inpatient CDI: What's Different

A provider writes "probable pneumonia." In the hospital, the coder reports pneumonia. In the clinic, the coder can't. Same words, same patient, two different answers, and that is only one of the differences between inpatient and outpatient clinical documentation integrity. In this CDI Education Series video, I compare the two settings side by side: how each one is paid (MS-DRGs vs. E/M levels and CMS-HCC risk scores), the ICD-10-CM rules that change between Section II and Section IV, review timing, what the 2026 ACDIS/AHIMA query brief means for outpatient queries, the metrics each program tracks, and the skills that carry over when you move from the hospital to the clinic. Need help with outpatient CDI, HCC risk adjustment auditing, or physician education? Visit http://help4docs.com FREE RESOURCE: Get the one-page "Inpatient vs. Outpatient CDI Quick Comparison." Reach out through the contact form at http://help4docs.com and ask for it by name. Sources: • CDC/NCHS and CMS. ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (effective October 1, 2026): Sections II, II.H, IV.G, IV.H, IV.I, IV.J. https://ftp.cdc.gov/pub/Health_Statis... • ACDIS and AHIMA. Guidelines for Achieving a Compliant Query Practice, 2026 Update (released September 1, 2026). https://acdis.org/node/70540 • CMS and RAND. Refinement of the Medicare Diagnosis Related Groups: MS-DRG system overview (FY 2008 IPPS). https://www.cms.gov/research-statisti... • MedPAC. March 2010 Report, Chapter 2A online appendix. https://www.medpac.gov/wp-content/upl... • CMS. Medicare Managed Care Manual, Chapter 7: Risk Adjustment. https://www.cms.hhs.gov/manuals/Downl... • ACDIS. 2023 CDI Week Bonus Q&A: Outpatient CDI and Risk Adjustment. https://acdis.org/node/65369 • Boldt, T., and Jantzer, E. Book excerpt: Outpatient query practice. ACDIS, 2019. https://dolbey.com/?p=39013 • Murphy, B. What is your CDI chart review process in the outpatient setting? Norwood. https://www.norwood.com/what-is-your-... About the creator: Toni M. Appelberg-Parks, MBA-HM/LM, CVBA, CDEO, CDEI, CRCR, CPC, CSBI, CPPM. President and Principal Consultant, Help4Docs. http://help4docs.com Does your CDI team review inpatient, outpatient, or both? Tell me in the comments. And if you have a coding, documentation, or compliance question, drop it in the comments; I read every one. This video is for general educational and informational purposes only. It is not legal, compliance, coding, or billing advice for any specific patient, claim, payer, or organization. Coding, documentation, and regulatory requirements vary by payer and change over time, so always verify current requirements with your own organization's compliance team, legal counsel, and the applicable payer or regulatory guidance before making coding, billing, or compliance decisions. #CDI #ClinicalDocumentationIntegrity #OutpatientCDI #MedicalCoding #RiskAdjustment #HCC #ICD10CM #HealthcareEducation #RevenueCycle