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Information for professionals

How to make a referral:


Health care professionals

If you a Health care professional please write a referral letter and send to or Bristol Dental Hospital
Lower Maudlin Street, Bristol BS1 2LY.

Alternatively you can ring us to discuss the referral on 0117 342 117

Speech and language therapist

If you are a speech and language therapist you can request a second opinion for a child or adult you are seeing by downloading and completing this   form.

Classifying clefts using the LAHSAL code

In the UK, there has been a general move to adopt a simple system for classifying clefts, which is easy to use yet has sufficient accuracy for most purposes. The LAHSAL code was chosen as the preferred classification system.  It is compatible with ICD 10 and allows clefts to be coded for computer use, most importantly on the CRANE register.

The LAHSAL code splits the relevant parts of the mouth into six parts:


  • Right lip
  • Right alveolus
  • Hard palate
  • Soft palate
  • Left  alveolus
  • Left lip

The South West Cleft Care registration form includes a simple chart that when completed gives us the LAHSAL code. Note the order in which it is written - is from the perspective of someone looking at the patient (i.e. the first character is for the patient's right lip, and the last character for the patient's left lip). The LAHSAL code indicates for each part whether there is a complete cleft (upper case letter, e.g. H), an incomplete cleft (lower case letter, e.g. h) or no cleft.