Special category data (defined by Article 9 of the UK GDPR) and sensitive data (defined by section 35 of the DPA 2018) is personal data which reveals:
Mae data categori arbennig (a ddiffinnir gan Erthygl 9 o'r GDPR y DU) a data sensitif (a ddiffinnir gan adran 35 o Deddf Diogelu Data 2018) yn ddata personol sy'n datgelu: