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ICD-10-CM 2027 diagnosis code

I97.89Other postprocedural complications and disorders of the circulatory system, not elsewhere classified

✓ Billable / specificCC — complication/comorbidity

I97.89 is a valid, billable ICD-10-CM code for other postprocedural complications and disorders of the circulatory system, not elsewhere classified. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Oth postproc comp and disorders of the circ sys, NEC

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About I97.89

I97.89 is the ICD-10-CM diagnosis code for other postprocedural complications and disorders of the circulatory system, not elsewhere classified. It belongs to category I97 (intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified), block I95-I99 (other and unspecified disorders of the circulatory system) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within I97.8, choose I97.89 (Other postprocedural complications and disorders of the circulatory system, not elsewhere classified) only when documentation doesn't support a more specific option: intraoperative cerebrovascular infarction (I97.81), postprocedural cerebrovascular infarction (I97.82) and other intraoperative complications of the circulatory system, not elsewhere classified (I97.88).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 314 (Other Circulatory System Diagnoses with MCC, relative weight 2.0873), DRG 315 (Other Circulatory System Diagnoses with CC, relative weight 0.9508), DRG 316 (Other Circulatory System Diagnoses without CC/MCC, relative weight 0.6677), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 05 (Diseases and Disorders of the Circulatory System) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 997.1 (cardiac complications, not elsewhere classified) and 997.99 (complications affecting other specified body systems, not elsewhere classified).

Notes that apply from higher levels

Instructions written at a parent level also apply to I97.89.

› From I97.8 Other intraoperative and postprocedural complications and disorders of the circulatory system, not elsewhere classified
Use additional code
  • code, if applicable, to further specify disorder
› From I97 Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified
Excludes2

Broader instructions also apply from Chapter 9: Diseases of the circulatory system.

Alphabetic index entries

9 entries

Terms in the official ICD-10-CM index that lead to I97.89.

Codes whose notes reference I97.89

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

ICD-9-CM equivalent

Converter →
  • 997.1Cardiac complications, not elsewhere classifiedapproximate
  • 997.99Complications affecting other specified body systems, not elsewhere classifiedapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about I97.89

Is I97.89 billable?

Yes. I97.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I97.89 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I97.89 as a principal diagnosis.

Is I97.89 a CC or MCC?

I97.89 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does I97.89 group to?

I97.89 is used in the MS-DRG v44.0 logic for MS-DRG 314 (Other Circulatory System Diagnoses with MCC), MS-DRG 315 (Other Circulatory System Diagnoses with CC), MS-DRG 316 (Other Circulatory System Diagnoses without CC/MCC), MS-DRG 791 (Prematurity with Major Problems) and MS-DRG 793 (Full Term Neonate with Major Problems). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for I97.89?

The CMS General Equivalence Mappings map I97.89 to ICD-9-CM 997.1 and 997.99.