A methodology to estimate the potential to move inpatient to one day surgery

Table 1 Elaboration of the list of surgical procedures eligible for day care

Category of procedure	Number of procedures codes
	Algorithm application (see figure 1)	Override (see table 2)	Eligible for day care
1. Procedure requiring circulatory support	94	0	0
2. Highly invasive open access procedure, very small organs excepted	605	16	16
3. Moderately invasive open access procedure, small and very small organs excepted	713	39	39
4. Highly invasive open access procedure, very small organs	13	6	7
5. Moderately invasive open access procedure, small and very small organs	143	28	115
6. Minimally invasive open access procedure	52	3	49
7. Endoscopic, endoluminal access, and closed reduction of fracture	383	21	362
8. Direct access procedures	299	26	273
TOTAL	2302*	139	861

*Among 3618 procedures included in the ICD-9-CM classification, 1172 were non surgical; 140 surgical procedures performed on body surface may be undertaken at the physician's office.

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