| Code Value |
Definition |
| 0 | Specified by tooth number (e.g., FastID, PLASS). For systems such as WinID and UDIM, which internally list the tooth number with a permanent tooth number but use a deciduous indicator, those two pieces of information shall be combined together to as |
| 1 | Unable to determine if the teeth are permanent or deciduous at the tooth level but the system does allow a marker to indicate that deciduous teeth are present in the dentition (e.g., NCIC). The permanent tooth number shall be used. |
| 2 | Coding system incapable of distinguishing deciduous from permanent teeth (e.g., NamUs). The permanent tooth number shall be used. |
| 3 | Unknown whether the coding is capable of indicating deciduous and permanent teeth and / or whether the coding was performed using that capability. The permanent tooth number shall be used. |