2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I97.3 is a billable ICD-10-CM diagnosis code for postprocedural hypertension. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 919 through 921. Coders also document this condition as perioperative 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.

  • Perioperative hypertension
  • Postoperative hypertension
  • Pulmonary venous hypertension as complication of procedure

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I97.3: its own notes plus those printed at I97 and Chapter 9. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From I97 Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified applies to 39 codes
From Chapter 9 (I00-I99) Diseases of the circulatory system applies to 1,433 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name I97.3, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming I97.3: they are not reported together with it, unless the two conditions are unrelated.

  • I15 Secondary hypertension
    postprocedural hypertension (I97.3)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

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

Patient EducationClinical

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Read the full article at MedlinePlus

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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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About I97.3Overview

What is the ICD-10 code for postprocedural hypertension?

The ICD-10-CM code for postprocedural hypertension is I97.3 (sometimes written as I973). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

What MS-DRG does I97.3 group to?

When postprocedural hypertension is the principal diagnosis on an inpatient stay, it groups to MS-DRG 920, 919, 921, with relative weights from 0.6719 to 1.7624 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.