Colour tagging of medical records and age-sex cards.

The colour tagging of medical records and age-sex cards is described. The system of eight colour tags originally recommended by the Royal College of General Practitioners was used as a basis but was modified and the number of colour tags extended to 13. These tags were applied to medical records and age-sex cards. The colour-coded age-sex registers thus serve as effective chronic morbidity and at-risk registers.