Concordance Between ICD-10 Codes and Clinical Diagnosis of Hypoparathyroidism in Sweden

Figures & data

Figure 1 Flow chart of study participants.

Notes: ICD-10 codes for inclusion in the study: E20.0: Idiopathic hypoparathyroidism, E20.1: Pseudohypoparathyroidism, E20.8: Other specified hypoparathyroidism, E20.9: Hypoparathyroidism unspecified, E89.2: Postprocedural hypoparathyroidism, D82.1: DiGeorge syndrome, and E31.0: Autoimmune polyglandular failure. ICD-10 codes for exclusion from the study: E83.5: Disorders of calcium metabolism, E21.4: Other specified disorders of parathyroid gland, E31.8: Other polyglandular dysfunction.

Table 1 Drug Groups of Conventional Treatment of Hypoparathyroidism in Sweden 2004–2016 (n=958)

Drug Groups	Patients (n)
Drug group 1: Calcium with/without vitamin D and active vitamin D	951
Drug group 2: Calcium with/without vitamin D and active vitamin D and Teriparatide	2
Drug group 3: Calcium with/without vitamin D and Teriparatide	3
Drug group 4: Calcium with vitamin D	23

Notes: Seventeen patients received drugs from drug groups 1 and 4. Two patients received drugs from drug groups 1, 2, and 3.

Table 2 Diagnostic Groups According to ICD-10 Code in the Swedish National Patient Register 2004–2016

ICD-10 Code - Diagnostic Groups	Total
E20.0: Idiopathic hypoparathyroidism	118
E20.1: Pseudohypoparathyroidism	26
E20.8: Other specified hypoparathyroidism	73
E20.9: Hypoparathyroidism unspecified	223
E89.2: Postprocedural hypoparathyroidism	664
D82.1: DiGeorge syndrome	10
E31.0: Autoimmune polyglandular failure	3

Notes: Nine hundred and fifty-eight cases had in total 1117 diagnoses for hypoparathyroidism during the study period.