Communication Function Classification System (CFCS)

The CFCS is a tool used to classify the everyday communication of an individual with cerebral palsy into one of five levels according to effectiveness of communication. It consists of five levels which describe everyday communication ability.
A woman looking at a young boy smiling, while he smiles towards the camera

Classification on the CFCS is made by a person who is familiar with the individual’s communication in everyday situations, and is based on the effectiveness of communication between a sender and receiver of information.

CFCS considers the familiarity of a person’s communication partners.

All ways of communicating are considered including speech, gesture, facial expression and augmentative and alternative communication.

A person classified at Level I is a more able communicator than a person classified at Level V.

CFCS levels


  1. Visit the CFCS Communication Function Classification System website for more information.