Table 1.

Spell numbers for the most common ICD-10 diagnostic codes for ambulatory emergency care unit and the non-ambulatory pathway

Rank	Ambulatory emergency care unit	Number of spells	Non-ambulatory pathway	Number of spells
1	Pain in throat and chest	1,919	Pneumonia, unspecified organism	4,925
2	Pneumonia, unspecified organism	1,127	Other disorders of urinary system	2,348
3	Cellulitis and acute lymphangitis	819	Pain in throat and chest	1,759
4	Heart failure	784	Other chronic obstructive pulmonary disease	1,506
5	Other disorders of urinary system	642	Other sepsis	1,310
6	Abnormalities of breathing	631	Heart failure	1,044
7	Atrial fibrillation and flutter	553	Unspecified acute lower respiratory infection	858
8	Unspecified acute lower respiratory infection	521	STEMI and non-STEMI	792
9	Pulmonary embolism	428	Atrial fibrillation and flutter	759
10	Other and unspecified soft tissue disorders, not classified elsewhere	423	Headache	720
11	Other chronic obstructive pulmonary disease	420	Cellulitis and acute lymphangitis	651
12	Other disorders of fluid, electrolyte and acid–base balance	363	Asthma	627
13	Headache	347	Infectious gastroenteritis and colitis, unspecified	604
14	Syncope and collapse	319	Syncope and collapse	571
15	Viral infection of unspecified site	296	Acute kidney failure	570
16	Iron deficiency anaemia	294	Other symptoms and signs involving the nervous and musculoskeletal systems	494
17	Abnormalities of heartbeat	266	Other diseases of digestive system	488
18	Abdominal and pelvic pain	253	Angina pectoris	464
19	Acute kidney failure	246	Other disorders of fluid, electrolyte and acid–base balance	459
20	Phlebitis and thrombophlebitis	238	Influenza due to other identified influenza virus	444