Coding Sources Registry
Citations are pulled from this registry across every Coding & Billing surface. Edit a source here and the learner-facing citation bar updates everywhere on next load. Sources older than 90 days prompt a weekly Slack nudge to re-verify.
3 source(s) registered.
American Medical Association · 2021 (Rev 2026-08)
Applies to: E/M, MDM
https://www.ama-assn.org/practice-management/cpt/office-evaluation-management-em-services-changesLast verified: 2026-08-19
Office and outpatient E/M only; inpatient uses AMA 2023.
CMS (Centers for Medicare & Medicaid Services) · v31 (Q3 2026)
Applies to: Modifier, CPT/HCPCS
https://www.cms.gov/files/document/ncci-policy-manual-pdf.pdfLast verified: 2026-08-19
NCCI edits govern modifier use on services performed on the same day.
CDC/NCHS + CMS + AHIMA · FY 2026 (Oct 1, 2025 – Sep 30, 2026)
Applies to: ICD-10-CM
https://www.cdc.gov/nchs/icd/icd-10-cm-guidelines.htmLast verified: 2026-08-19
Effective for discharges Oct 1, 2025 – Sep 30, 2026.
