All BMI coded terms

Coding system
Coding system release
PRIMIS Covid Vaccination Uptake Reporting
Codelist ID
Version Tag
Version ID



Taken from the BMI_STAGE field in SARS-CoV2 COVID19 Vaccination Uptake Reporting Codes 20_21 v1.2, published by PRIMIS.

© PRIMIS - the University of Nottingham 2021


Codelists are developed by a broad community of users for individual study purposes, which may or may not meet the needs of other studies. They should not be thought of as universal definitions of a particular condition.

We don't offer any guarantees about what they do or don't identify. Users should carefully check that any codelist meets their needs, and seek clinical input where appropriate.

code term
162863004 Body mass index 25-29 - overweight
162864005 Body mass index 30+ - obesity
310252000 Body mass index less than 20
35425004 Normal body mass index
408512008 Body mass index 40+ - severely obese
412768003 Body mass index 20-24 - normal
427090001 Body mass index less than 16.5
443371000124107 Obese class I
443381000124105 Obese class II
6497000 Decreased body mass index
722595002 Overweight in adulthood with body mass index of 25 or more but less than 30
819948005 Obese class III
914721000000105 Obese class I (body mass index 30.0 - 34.9)
914731000000107 Obese class II (body mass index 35.0 - 39.9)
914741000000103 Obese class III (body mass index equal to or greater than 40.0)

Codes not in the full codelist are in faint grey.