2026 ICD-10-CM Diagnosis Code I97.3Postprocedural hypertension

ICD-10-CM Codes›I00–I99›I95-I99›I97

ICD-10-CM I97.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

I97.3 is a billable ICD-10-CM diagnosis code for postprocedural hypertension. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 919 through 921. Coders also document this condition as postoperative hypertension. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hypertension with complications and secondary hypertension and Postprocedural or postoperative circulatory system complication.

Code Identity

ICD-10-CM Code
I97.3
Billable Status
Yes — Valid for Submission
Code Describes
Postprocedural hypertension
Short Description
Postprocedural hypertension
Same as the full description in the CMS dataset.
Parent Code
I97
Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI95-I99Other and unspecified disorders of the circulatory system
CategoryI97Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified
This CodeI97.3Postprocedural hypertension

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Postoperative hypertension
  • Pulmonary venous hypertension as complication of procedure

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.

    • Complication(s) (from) (of)
      • circulatory system
        • postprocedural
          • hypertension
    • Hypertension, hypertensive(accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
      • postoperative

Clinical ClassificationClinical

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

CCSR CIR008
Hypertension with complications and secondary hypertension
Default principal diagnosis: inpatient No · outpatient No
CCSR CIR038
Postprocedural or postoperative circulatory system complication
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Postoperative Hypertension

    a transient increase in blood pressure following a surgical procedure.

Patient EducationClinical

After Surgery

After any operation, you'll have some side effects. There is usually some pain with surgery. There may also be swelling and soreness around the area that the surgeon cut. Your surgeon can tell you which side effects to expect.

Read the full article at MedlinePlus

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

Convert I97.3 to ICD-9-CMHistory

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

ICD-9-CM
997.91 Surg comp - hypertension
Exact Match The mapping is direct, with no qualifiers.

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 I97.3Overview

Is I97.3 a billable code?

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

What MS-DRG does I97.3 group to?

When postprocedural hypertension is the principal diagnosis on an inpatient stay, it groups to MS-DRG 919, 920, 921, with relative weights from 0.6884 to 1.8308 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of I97.3?

Under the General Equivalence Mappings, postprocedural hypertension converts to ICD-9-CM 997.91 (surg comp - hypertension). The mapping is a direct match.

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.