CPT 2027: 40 publicly verified code changes, with maternity care the largest rebuilt cluster

This is a verified partial change table — 40 individual Category I CPT codes whose 2027 status (new, revised, or deleted) is documented in public sources, out of roughly 453 editorial changes in the full copyrighted CPT 2027 set. It covers maternity, labor, delivery and postpartum care, prostate biopsy, adaptive behavior services, immunization, diaphragmatic hernia repair, and pathology/laboratory testing. Effective January 1, 2027 unless an AMA early-release code carries its own activation timing. Summaries are public service summaries, not licensed official CPT descriptors.

Verified partial table of publicly documented CPT 2027 Category I changes: 40 rows, one per five-digit code, each with 2027 status (new, revised, deleted) and a public service summary — not licensed official CPT descriptors. Research current as of September 14, 2026; effective date January 1, 2027 unless an AMA early-release code has its own timing. Sources span 3 independent hosts; the largest single source URL backs 15 of 40 rows. Absence of a code here does not mean it is unchanged; the full set of about 453 editorial changes is copyrighted by the AMA.