Source Code Name Case count Share of cases (%)
OUTPAT OUTPAT_ICD10(O13) Gestational [pregnancy-induced] hypertension without significant proteinuria 6420
INPAT INPAT_ICD10(O13) Gestational [pregnancy-induced] hypertension without significant proteinuria 4716
INPAT INPAT_ICD8(63701) Pre-eclampsia, eclampsia and toxaemia, unspecified, Hypertonia 2223
OUTPAT OUTPAT_ICD10(O100) Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium 2003
INPAT INPAT_ICD8(63703) Pre-eclampsia, eclampsia and toxaemia, unspecified, Prae-eclampsia levis 1975
INPAT INPAT_ICD10(O140) Moderate pre-eclampsia 1790
OUTPAT OUTPAT_ICD10(O140) Moderate pre-eclampsia 1566
INPAT INPAT_ICD10(O100) Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium 1451
OUTPAT OUTPAT_ICD10(O149) Pre-eclampsia, unspecified 1343
INPAT INPAT_ICD9(6423A) Hypertension complicating pregnancy, childbirth and the puerperium, Transient hypertension of pregnancy 1327
INPAT INPAT_ICD9(6424A) Hypertension complicating pregnancy, childbirth and the puerperium, Mild or unspecified pre-eclampsia 1258
INPAT INPAT_ICD10(O149) Pre-eclampsia, unspecified 1070
INPAT INPAT_ICD10(O141) Severe pre-eclampsia 928
INPAT INPAT_ICD9(6420X) Benign essential hypertension complicating pregnancy, childbirth, and the puerperium 520
INPAT INPAT_ICD8(63704) Pre-eclampsia, eclampsia and toxaemia, unspecified, Prae-eclampsia gravis 426
INPAT INPAT_ICD9(6424B) Hypertension complicating pregnancy, childbirth and the puerperium, Mild or unspecified pre-eclampsia 351
INPAT INPAT_ICD9(6425A) Hypertension complicating pregnancy, childbirth and the puerperium, Severe pre-eclampsia 311
OUTPAT OUTPAT_ICD10(O141) Severe pre-eclampsia 297
OUTPAT OUTPAT_ICD10(O16) Unspecified maternal hypertension 270
INPAT INPAT_ICD8(66120) Labour and delivery with other complication, Intrapartum eclampsia (pre-eclampsia), Occipital presentation 244
INPAT INPAT_ICD9(6425B) Hypertension complicating pregnancy, childbirth and the puerperium, Severe pre-eclampsia 216
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O13) Gestational [pregnancy-induced] hypertension without significant proteinuria. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 192
INPAT INPAT_ICD10(O16) Unspecified maternal hypertension 185
INPAT INPAT_ICD8(63710) Pre-eclampsia, eclampsia and toxaemia, unspecified, Eclampsia 180
INPAT INPAT_ICD8(63799) Pre-eclampsia, eclampsia and toxaemia, unspecified, Toxaemia, unspecified 162
OUTPAT OUTPAT_ICD10(O109) Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium 159
INPAT INPAT_ICD9(6423B) Hypertension complicating pregnancy, childbirth and the puerperium, Transient hypertension of pregnancy 145
OUTPAT OUTPAT_ICD10(O11) Pre-existing hypertensive disorder with superimposed proteinuria 131
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O16) Unspecified maternal hypertension. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 125
INPAT INPAT_ICD10(O11) Pre-existing hypertensive disorder with superimposed proteinuria 106
INPAT INPAT_ICD10(O109) Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium 83
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O149) Pre-eclampsia, unspecified. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 74
INPAT INPAT_ICD8(63709) Pre-eclampsia, eclampsia and toxaemia, unspecified, Prae-eclampsia NUD 70
OUTPAT OUTPAT_ICD10(O101) Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium 63
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O100) Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 53
INPAT INPAT_ICD10(O101) Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperium 34
INPAT INPAT_ICD9(6429A) Hypertension complicating pregnancy, childbirth and the puerperium, Unspecified hypertension complicating pregnancy, childbirth, or the puerperium 31
OUTPAT OUTPAT_ICD10(O14) Gestational [pregnancy-induced] hypertension with significant proteinuria 27
INPAT INPAT_ICD9(6420A) Name not found 25
OUTPAT OUTPAT_ICD10(O104) Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium 25
INPAT INPAT_ICD9(6427A) Hypertension complicating pregnancy, childbirth and the puerperium, Pre-eclampsia or eclampsia superimposed on pre-existing hypertension 23
INPAT INPAT_ICD10(O150) Eclampsia in pregnancy 21
INPAT INPAT_ICD9(6423C) Hypertension complicating pregnancy, childbirth and the puerperium, Transient hypertension of pregnancy 21
INPAT INPAT_ICD9(6422X) Other pre-existing hypertension complicating pregnancy, childbirth, and the puerperium 19
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O140) Moderate pre-eclampsia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 19
OUTPAT OUTPAT_ICD10(O103) Pre-existing hypertensive heart and renal disease complicating pregnancy, childbirth and the puerperium 18
INPAT INPAT_ICD9(6426A) Hypertension complicating pregnancy, childbirth and the puerperium, Eclampsia 16
INPAT INPAT_ICD10(O151) Eclampsia in labour 15
INPAT INPAT_ICD9(6421X) Hypertension secondary to renal disease, complicating pregnancy, childbirth, and the puerperium 14
INPAT INPAT_ICD10(O104) Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium 12
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O14) Gestational [pregnancy-induced] hypertension with significant proteinuria. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 12
INPAT INPAT_ICD9(6426B) Hypertension complicating pregnancy, childbirth and the puerperium, Eclampsia 11
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O10) Pre-existing hypertension complicating pregnancy, childbirth and the puerperium. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 11
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O141) Severe pre-eclampsia. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 11
INPAT INPAT_ICD10(O152) Eclampsia in the puerperium 9
INPAT INPAT_ICD9(6427B) Hypertension complicating pregnancy, childbirth and the puerperium, Pre-eclampsia or eclampsia superimposed on pre-existing hypertension 9
OUTPAT OUTPAT_ICD10(O10) Pre-existing hypertension complicating pregnancy, childbirth and the puerperium 9
OUTPAT OUTPAT_ICD10(O150) Eclampsia in pregnancy 9
OUTPAT OUTPAT_ICD10(O102) Pre-existing hypertensive renal disease complicating pregnancy, childbirth and the puerperium 7
INPAT INPAT_ICD10(O103) Pre-existing hypertensive heart and renal disease complicating pregnancy, childbirth and the puerperium 6
INPAT INPAT_ICD9(6424C) Hypertension complicating pregnancy, childbirth and the puerperium, Mild or unspecified pre-eclampsia 6
PRIM_OUT PRIM_OUT_NOT_USED_ICD10(O11) Pre-existing hypertensive disorder with superimposed proteinuria. Not used in endpoint definition. POSSIBLY INACCURATE IN COMPLEX ENDPOINTS! 6
OUTPAT OUTPAT_ICD10(O152) Eclampsia in the puerperium 5