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Table 1 Diagnostic codes investigated

From: Sick leave, disability, and mortality in acute hepatic porphyria: a nationwide cohort study

Long-term sick leave diagnoses

ICPC-2 code

General and unspecified

A01-A99

Weakness/ tiredness general

A04

Abdominal pain

D01-D02, D06

Cardiovascular

K01-K99

High blood pressure/hypertensive disorder

K85, K86, K87

Ischemic heart disease

K76

Muscle/joint – pain/symptoms

L18, L19, L20

Neurological

N01-N99

Psychological

P01-P99

Acute stress reaction

P02

Feeling depressed

P03

Depressive disorder

P76

Endocrine/ metabolism/ nutritional disorder, other

T99

Urological symptoms and diseases

U01-U99

Disability pension diagnoses

ICD-10 code

Neoplasms

C00–96, D45–47

Disorders of porphyrin and bilirubin metabolism

E80

Mental and behavioral disorders

F00-F99

Epilepsy

G40

Diseases of the circulatory system

I00-I99

Hypertension

I10-I15

Ischemic heart disease

I20-I25

Diseases of the musculoskeletal system and connective tissue

M00-M99

Renal failure

N17-N19

Causes of death diagnosis (underlying and contributing)

ICD-10 code

Malignant neoplasms

C00–96, D45–47

Hepatocellular carcinoma

C22.0

Renal carcinoma

C64

Type I diabetes

E10

Hypertension

I10-I11

Ischemic heart disease

I20-I25

Renal failure

N17-N19

  1. Abbreviations: ICPC-2 International Classification of Primary Care – 2nd edition; ICD-10 International Classification of Diseases (ICD) – 10th revision