Manifestation ICD-10-CM Codes
ICD-10-CM codes that cannot be used as principal diagnosis.
0 codes
Grouped by ICD-10 chapterManifestation codes describe the manifestation of an underlying disease, not the disease itself. They must always be sequenced after the underlying cause code and cannot be the principal diagnosis on a claim.
Source: CMS Definitions of Medicare Code Edits v43.0 (FY 2026)