Coding of medication (ATC codes)

Table of Contents

• 1. Coding of medications from open ended text fields
  

Coding of medications from open ended text fields

All medicines stated in questionnaires during pregnancy and up until the child is 7 years have been coded using the Anatomical Therapeutic Chemical (ATC) classification system. Data (code) is stored in variables named with a suffix K (for coded). The names correspond to the name for variables with the belonging open ended text field. There is a hyphen after each ATC-code (-). Where there is more than one given medication in a specific field, the ATC-codes are separated by hyphens (-). The procedure for coding of medications in MoBa (only available in Norwegian) are described in: Koderutiner.pdf

Example:
Variable AA1627_K contains coded data for medications given in question 39.18 in questionnaire 1 with label description (AA1627_K: S_3918_3_K:Questionnaire 1C; (S_3918_3_K:Questonnaire1B); (S_4023_3_K:Questionnaire 1A); Anaemia/low haemoglobin, Name of medicines; 3. Do you have or have you had any of the following illnesses or health problems? If you have taken medication (tablets, mixtures, suppositories, inhalers, creams etc.) in conjunction with the illness or health problem give the name(s) of the medication(s) and when you took them).

The contents of this variable can for example be “B03BB01-E000009-“, meaning the women has specified a medicine with ATC-code “B03BB01” and an iron supplement (see the list below).

Other codes used (not ATC-codes):

Code	Medication used for (grouped)
E000000	Do not remember, “?” or the like
E000001	Allergy/asthma
E000002	Unknown
E000003	Antibiotics
E000004	Various skin diseases
E000005	Epilepsy medication
E000006	Test medicines
E000007	Cough mixture/expectorants
E000008	Homeopathic / herbal medicines
E000009	Iron supplement
E000010	Stomach/intestine (dyspepsia, constipation)
E000011	Nervous condition medication
E000012	Pain killers
E000013	Sleeping medicine
E000014	Growth hormones/other hormones
E000015	Eye medication
E000016	Various narcotic substances
E000017	Slimming medication
E000018	Blood pressure medication
E000019	Cholesterol medication
E000020	Insulin unspecified
E000021	Chemotherapy
E000022	Acupuncture
E000023	Alternative medical treatment
E000024	Fever reducing medication (adult)
E000025	Surgical procedure
E000026	Conisation
E000027	Nausea relief medication
E000028	Laser treatment
E000029	Lung maturing medicine
E000030	Medicine for premature babies
E000031	Medicine for IVF
E000032	Medicine for RS-virus infection
E000033	Radiation therapy
E000034	Ear medication
E000035	Disease/ symptoms (own information)
E000036	Unknown medication
E000037	Non-medicinal treatment (e.g. ice, warm shower, belt etc.)
E000038	Preterm labour medicine (before birth)