Table 1.

Code 'D01' corresponds to the 'Abdominal pain/cramps general' single diagnosis in the English ICPC-2 version and the ICPC-1 Norwegian version; the same code corresponds to 11 text field options in the ICPC-2 Norwegian version, as it is shown in the first column of the table.

Diagnosis text field (Norwegian ICPC-2)	Diagnosis text field (English translation)
Abdomen symptomer/plager INA*	Abdomen symptoms/complaints INA
Abdominal ømhet	Abdominal tenderness
Abdominalsmerte INA*	Abdominal pain
Abdominalsmerte/krampe generell	Abdominal pain/cramp general
Akutt abdomen	Acute abdomen
Kolikksmerter	Colic pain
Magesmerter akutt	Stomach acute pain
Magesmerter uspesifikke	Stomach pain, unspecified
Smerte abdomen uspesifikk	Pain abdomen unspecified
Spedbarnskolikk	Infant colic
Tremånederskolikk	Three month colic

The English translation was added by the authors to allow a better comprehension of the extra options that are offered to the Norwegian users; these options are not available in the English ICPC-2 version.

*INA: not further specified (Ikke Nærmere Angitt).