2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Diseases Of Veins And Lymphatics, And Other Diseases Of Circulatory System 451-459 > Hypotension 458.* > 2006 ICD-9-CM Diagnosis 458.9 Hypotension unspecified View the most recent version of ICD-9-CM 458.9 Abnormally low blood pressure seen in shock but not necessarily indicative of it. Abnormally low blood pressure. 458.9 is a specific code that can be used to specify a diagnosis 458.9 contains 6 index entries View the ICD-9-CM Volume 1 458.* hierarchy Alternate Terminology Hypotension (arterial) NOS  Index entries containing 458.9: Abnormal, abnormality, abnormalities - see also Anomaly blood pressure low (see also Hypotension) 458.9 reading (incidental) (isolated) (nonspecific) 796.3 Blood pressure low (see also Hypotension) 458.9 incidental reading (isolated) (nonspecific), without diagnosis of hypotension 796.3 Constitutional - see also condition arterial hypotension (see also Hypotension) 458.9 Hypotension (arterial) (constitutional) 458.9 chronic 458.1 iatrogenic 458.29 maternal, syndrome (following labor and delivery) 669.2 of hemodialysis 458.21 orthostatic (chronic) 458.0 dysautonomic-dyskinetic syndrome 333.0 permanent idiopathic 458.1 postoperative 458.29 postural 458.0 specified type NEC 458.8 transient 796.3 Low blood pressure (see also Hypotension) 458.9 reading (incidental) (isolated) (nonspecific) 796.3 Pressure hyposystolic (see also Hypotension) 458.9