New Casemix Classification as an Alternative Method for Budget Allocation in Thai Oral Healthcare Service: A Pilot Study

Table 1

Examples of both groups (M and D), split into procedure clusters using the anatomy group by body region.

OMFS groups (anatomical body region)	Code M
Scalp
Include: scalp and subgaleal soft tissues	M01
Skull	M02
Cranial nerves X, Trigeminal nerve	M03
Cranial nerves X1, Accessory nerve	M04
Cranial nerve XII, Hypoglossal nerve	M05
Cranial nerves	M06
Face	M07
Maxilla	M08
Mandible	M09
Tooth and periodontium group (anatomical body region)	Code D
Oral examination	D01
Radiographs/Diagnostic imaging	D02
Preventive dentistry	D03
Oral hygiene instructions and counseling	D04
Tooth restoration	D05
Endodontic treatment	D06

M: oral and maxillofacial surgery (OMFS) corrects a wide spectrum of diseases, injuries, and defects in the head, neck, face, jaws, and the hard and soft tissues of the oral and maxillofacial region.
D: tooth and periodontium: periodontium refers to the specialized tissues that surround and support the teeth (small, calcified, whitish structures found in the jaws (or mouth)) maintaining them in the maxilla and mandible.