Person—foot deformity indicator, code N

Identifying and definitional attributes

Metadata item type:Data Element
Short name:Foot deformity
METeOR identifier:302449
Registration status:Health, Standard 21/09/2005

Whether a deformity is present on either foot, as represented by a code.

Data Element Concept:Person—foot deformity indicator

Value domain attributes

Representational attributes

Representation class:Code
Data type:Number
Maximum character length:1
Permissible values:
Supplementary values:
9Not stated/inadequately described

Collection and usage attributes

Guide for use:

CODE 9    Not stated/inadequately described

This code is not for use in primary data collections.

Data element attributes

Collection and usage attributes

Guide for use:

CODE 1   Yes
Record if a foot deformity is present on either foot.

CODE 2   No
Record if no foot deformity is present on either foot.

Common deformities include claw toes, pes cavus, hallux valgus, hallux rigidus, hammer toe, Charcot foot and nail deformity.

Collection methods:

Both feet to be examined for the presence of foot deformity.


Foot deformities are associated with high mechanical pressure on the overlying skin that lead to ulceration in the absence of protective pain sensation and when shoes are unsuitable. Limited joint mobility is often present, with displaced plantar fat pad and more prominent metatarsal heads.

Source and reference attributes

Submitting organisation:

National diabetes data working group


National Diabetes Outcomes Quality Review Initiative (NDOQRIN) data dictionary

Reference documents:

Lesley V Campbell, Antony R Graham, Rosalind M Kidd, Hugh F Molloy, Sharon R O'Rourke and Stephen Colagiuri: The Lower Limb in People With Diabetes; Content 1997/98 Australian Diabetes Society.

Edmonds M, Boulton A, Buckenham T, et al. Report of the Diabetic Foot and Amputation Group. Diabet Med 1996; 13: S27 - 42.

Reiber GE. Epidemiology of the diabetic foot. In: Levin ME, O'Neal LW, Bowker JH, editors. The diabetic foot. 5th ed. St Louis: Mosby Year Book, 1993; 1 - 5.

Most RS, Sinnock P. The epidemiology of lower limb extremity amputations in diabetic individuals. Diabetes Care 1983; 6: 87 - 91.
Therapeutic Guidelines Limited (05.04.2002) Management plan for diabetes.

Relational attributes

Related metadata references:

Supersedes Person—foot deformity status, code N Health, Superseded 21/09/2005

Implementation in Data Set Specifications:

Diabetes (clinical) NBPDS Health, Standard 21/09/2005

DSS specific attributes +