2026 ICD-10-CM Diagnosis Code I95.0Idiopathic hypotension

ICD-10-CM Codes›I00–I99›I95-I99›I95

ICD-10-CM I95.0
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I95.0 is a billable ICD-10-CM diagnosis code for idiopathic hypotension. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 314 through 316. Coders also document this condition as chronic hypotension. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hypotension.

Code Identity

ICD-10-CM Code
I95.0
Billable Status
Yes — Valid for Submission
Code Describes
Idiopathic hypotension
Short Description
Idiopathic hypotension
Same as the full description in the CMS dataset.
Parent Code
I95
Hypotension

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI95-I99Other and unspecified disorders of the circulatory system
CategoryI95Hypotension
This CodeI95.0Idiopathic hypotension

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Chronic hypotension
  • Chronic orthostatic hypotension
  • Idiopathic chronic hypotension
  • Idiopathic hypotension
  • Idiopathic intracranial hypotension
  • Intracranial hypotension
  • Orthostatic hypotension
  • Pure autonomic failure

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Hypotension(arterial) (constitutional)
      • idiopathic (permanent)

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR CIR031
Hypotension
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Intracranial Hypotension

    reduction of cerebrospinal fluid pressure characterized clinically by orthostatic headache and occasionally by an abducens nerve palsy; hearing loss; nausea; neck stiffness, and other symptoms. this condition may be spontaneous or secondary to cerebrospinal fluid leak; spinal puncture; neurosurgical procedures; dehydration; uremia; trauma (see also craniocerebral trauma); and other processes. chronic hypotension may be associated with subdural hematomas (see hematoma, subdural) or hygromas. (from semin neurol 1996 mar;16(1):5-10; adams et al., principles of neurology, 6th ed, pp637-8)

  • Pure Autonomic Failure

    a degenerative disease of the autonomic nervous system that is characterized by idiopathic orthostatic hypotension and a greatly reduced level of catecholamines. no other neurological deficits are present.

Patient EducationClinical

Low Blood Pressure

You've probably heard that high blood pressure is a problem. Sometimes blood pressure that is too low can also cause problems.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert I95.0 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
458.1 Chronic hypotension
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About I95.0Overview

Is I95.0 (Hypotension) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report idiopathic hypotension on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does I95.0 group to?

When idiopathic hypotension is the principal diagnosis on an inpatient stay, it groups to MS-DRG 314, 315, 316, with relative weights from 0.6821 to 2.0852 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of I95.0?

Under the General Equivalence Mappings, idiopathic hypotension converts to ICD-9-CM 458.1 (chronic hypotension). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.