| Code | Description |
| G93.2 | Benign intracranial hypertension |
| H40.051 | Ocular hypertension, right eye |
| H40.052 | Ocular hypertension, left eye |
| H40.053 | Ocular hypertension, bilateral |
| H40.059 | Ocular hypertension, unspecified eye |
| I10. | Essential (primary) hypertension |
| I15.0 | Renovascular hypertension |
| I15.1 | Hypertension secondary to other renal disorders |
| I15.2 | Hypertension secondary to endocrine disorders |
| I15.8 | Other secondary hypertension |
| I15.9 | Secondary hypertension, unspecified |
| I27.0 | Primary pulmonary hypertension |
| I27.2 | Other secondary pulmonary hypertension |
| I87.301 | Chronic venous hypertension (idiopathic) without complications of right lower extremity |
| I87.302 | Chronic venous hypertension (idiopathic) without complications of left lower extremity |
| I87.303 | Chronic venous hypertension (idiopathic) without complications of bilateral lower extremity |
| I87.309 | Chronic venous hypertension (idiopathic) without complications of unspecified lower extremity |
| I87.311 | Chronic venous hypertension (idiopathic) with ulcer of right lower extremity |
| I87.312 | Chronic venous hypertension (idiopathic) with ulcer of left lower extremity |
| I87.313 | Chronic venous hypertension (idiopathic) with ulcer of bilateral lower extremity |
| I87.319 | Chronic venous hypertension (idiopathic) with ulcer of unspecified lower extremity |
| I87.321 | Chronic venous hypertension (idiopathic) with inflammation of right lower extremity |
| I87.322 | Chronic venous hypertension (idiopathic) with inflammation of left lower extremity |
| I87.323 | Chronic venous hypertension (idiopathic) with inflammation of bilateral lower extremity |
| I87.329 | Chronic venous hypertension (idiopathic) with inflammation of unspecified lower extremity |
| I87.331 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of right lower extremity |
| I87.332 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of left lower extremity |
| I87.333 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity |
| I87.339 | Chronic venous hypertension (idiopathic) with ulcer and inflammation of unspecified lower extremity |
| I87.391 | Chronic venous hypertension (idiopathic) with other complications of right lower extremity |
| I87.392 | Chronic venous hypertension (idiopathic) with other complications of left lower extremity |
| I87.393 | Chronic venous hypertension (idiopathic) with other complications of bilateral lower extremity |
| I87.399 | Chronic venous hypertension (idiopathic) with other complications of unspecified lower extremity |
| I97.3 | Postprocedural hypertension |
| K76.6 | Portal hypertension |
| O10.011 | Pre-existing essential hypertension complicating pregnancy, first trimester |
| O10.012 | Pre-existing essential hypertension complicating pregnancy, second trimester |
| O10.013 | Pre-existing essential hypertension complicating pregnancy, third trimester |
| O10.019 | Pre-existing essential hypertension complicating pregnancy, unspecified trimester |
| O10.02 | Pre-existing essential hypertension complicating childbirth |
| O10.03 | Pre-existing essential hypertension complicating the puerperium |
| O10.411 | Pre-existing secondary hypertension complicating pregnancy, first trimester |
| O10.412 | Pre-existing secondary hypertension complicating pregnancy, second trimester |
| O10.413 | Pre-existing secondary hypertension complicating pregnancy, third trimester |
| O10.419 | Pre-existing secondary hypertension complicating pregnancy, unspecified trimester |
| O10.42 | Pre-existing secondary hypertension complicating childbirth |
| O10.43 | Pre-existing secondary hypertension complicating the puerperium |
| O10.911 | Unspecified pre-existing hypertension complicating pregnancy, first trimester |
| O10.912 | Unspecified pre-existing hypertension complicating pregnancy, second trimester |
| O10.913 | Unspecified pre-existing hypertension complicating pregnancy, third trimester |
| O10.919 | Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester |
| O10.92 | Unspecified pre-existing hypertension complicating childbirth |
| O10.93 | Unspecified pre-existing hypertension complicating the puerperium |
| O11.1 | Pre-existing hypertension with pre-eclampsia, first trimester |
| O11.2 | Pre-existing hypertension with pre-eclampsia, second trimester |
| O11.3 | Pre-existing hypertension with pre-eclampsia, third trimester |
| O11.4 | Pre-existing hypertension with pre-eclampsia, complicating childbirth |
| O11.5 | Pre-existing hypertension with pre-eclampsia, complicating the puerperium |
| O11.9 | Pre-existing hypertension with pre-eclampsia, unspecified trimester |
| O13.1 | Gestational [pregnancy-induced] hypertension without significant proteinuria, first trimester |
| O13.2 | Gestational [pregnancy-induced] hypertension without significant proteinuria, second trimester |
| O13.3 | Gestational [pregnancy-induced] hypertension without significant proteinuria, third trimester |
| O13.4 | Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating childbirth |
| O13.5 | Gestational [pregnancy-induced] hypertension without significant proteinuria, complicating the puerperium |
| O13.9 | Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester |
| O16.1 | Unspecified maternal hypertension, first trimester |
| O16.2 | Unspecified maternal hypertension, second trimester |
| O16.3 | Unspecified maternal hypertension, third trimester |
| O16.4 | Unspecified maternal hypertension, complicating childbirth |
| O16.5 | Unspecified maternal hypertension, complicating the puerperium |
| O16.9 | Unspecified maternal hypertension, unspecified trimester |
| P29.2 | Neonatal hypertension |
| R03.0 | Elevated blood-pressure reading, without diagnosis of hypertension |