Expansion of the Family Health Program in Brazil requires indicators to evaluate the consistency of the approach actually adopted and the program's underlying principles. Together with the family health chart, the family health history (medical genealogy) allows improved follow-up of the clientele's health and the quality of care provided. This study used the family health chart based on external evaluation (accreditation) of family health teams and managers. The results showed variation in the health charts' conformity to the accreditation standard according to the nature of the function evaluated. The study showed the importance of external evaluation to signal the level of conformity to the required standards, suggesting the need to operate with a combined indicator, including internal and external evaluation of family health data as a management instrument.