Billable / Specific Code
ICD-10-CM R03.1 is the diagnosis code for Nonspecific low blood-pressure reading. This code falls under the section "Symptoms and signs involving the circulatory and respiratory systems" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as R03.1. They are mutually exclusive:
Understanding where R03.1 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, R03.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
R03.1 is the ICD-10-CM diagnosis code for "Nonspecific low blood-pressure reading". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of R03.1 is R03 ("Abnormal blood-pressure reading, without diagnosis"). R03.1 provides a more specific classification within this category.
R03.1 is located in Section R00-R09 — "Symptoms and signs involving the circulatory and respiratory systems" within Chapter 18 of the ICD-10-CM Tabular List.
R03.1 has 1918 sub-code(s) that provide more specific detail: A00, A01, A02, A03, A04 and more.
Use R03.1 when the patients documented diagnosis matches "Nonspecific low blood-pressure reading" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Nonspecific low blood-pressure reading is R03.1.
Yes, R03.1 can be used as a primary diagnosis code since it is billable and specific.
R03.1 is in Chapter 18 of the ICD-10-CM Tabular List.
Type 1 Excludes for R03.1 include: hypotension (I95.-); maternal hypotension syndrome (O26.5-); neurogenic orthostatic hypotension (G90.3).
Yes, R03.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.