Weight loss as a predictor of cancer and serious disease in primary care: an ISAC-approved CPRD protocol for a retrospective cohort study using routinely collected primary care data from the UK

Table 1 Weight measurement and unexpected weight loss codes

Unexpected weight loss codes
Medcode	Readcode	Readterm
126	22A6.00	O/E—underweight
654	1623	Weight decreasing
1581	162..00	Weight symptom
3647	R032.00	[D]Abnormal loss of weight
4663	1625	Abnormal weight loss
5812	1625.11	Abnormal weight loss—symptom
12,398	1D1A.00	Complaining of weight loss
12,530	R034800	[D]Underweight
14,764	162Z.00	Weight symptom NOS
22,005	2224	O/E—cachexic
24,068	R2y4.00	[D]Cachexia
32,914	22K3.00	Body Mass Index low K/M2
37,937	22A8.00	Weight loss from baseline weight
42,309	22A7.00	Baseline weight
53,801	R2y4z00	[D]Cachexia NOS
102,563	1627	Unintentional weight loss
Weight measurement codes
2	22A..00	O/E—weight
8105	22K..00	Body mass index
9015	22K4.00	Body mass index 25–29—overweight
13,278	22K5.00	Body mass index 30+—obesity
21,520	22AZ.00	O/E—weight NOS
22,556	22K7.00	Body mass index 40+—severely obese
24,496	22K6.00	Body mass index less than 20
28,937	22K2.00	Body mass index high K/M2
28,946	22K1.00	Body mass index normal K/M2
44,291	22K8.00	Body mass index 20–24—normal
101,047	22K9.00	Body mass index centile
105,791	22K9000	Baseline body mass index centile
105,800	22KB.00	Baseline body mass index
107,231	22KA.00	Target body mass index

ISSN: 2397-7523