R03.1 Nonspecific low blood-pressure reading

Billable ICD-10-CM code, FY2026.

Excludes1 (never code together)

• hypotension (I95.-)
• maternal hypotension syndrome (O26.5-)
• neurogenic orthostatic hypotension (G90.3)

MS-DRG index

Defines the logic of DRG(s) 314-316 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 796.3 Nonspecific low blood pressure reading

Code annotations containing back-references to R03.1

Back-references to R03.1

• Type 1 Excludes: I95 Hypotension ("nonspecific low blood pressure reading NOS (R03.1)")

Diagnosis Index entries for R03.1

• Abnormal, abnormality, abnormalities › blood pressure › low reading (nonspecific)
• Blood › pressure › low › incidental reading, without diagnosis of hypotension
• Decrease (d) › blood › pressure
• Low › blood pressure › reading (incidental) (isolated) (nonspecific)
• Pressure › hyposystolic › incidental reading, without diagnosis of hypotension

Nearby codes

• R03 Abnormal blood-pressure reading, without diagnosis
• R03.0 Elevated blood-pressure reading, without diagnosis of hypertension
• R03.1 Nonspecific low blood-pressure reading (this code)