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ICD-10-CM 2027 diagnosis code

I97.110Postprocedural cardiac insufficiency following cardiac surgery

✓ Billable / specificCC — complication/comorbidity

I97.110 is a valid, billable ICD-10-CM code for postprocedural cardiac insufficiency following cardiac surgery. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Postproc cardiac insufficiency following cardiac surgery

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 I97.110

I97.110 is the ICD-10-CM diagnosis code for postprocedural cardiac insufficiency following cardiac surgery. 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 I97.11 (postprocedural cardiac insufficiency), I97.110 is specifically for postprocedural cardiac insufficiency following cardiac surgery. Related codes cover following other surgery (I97.111).

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 429.4 (functional disturbances following cardiac surgery), 429.4 (functional disturbances following cardiac surgery) and 997.1 (cardiac complications, not elsewhere classified).

Notes that apply from higher levels

Instructions written at a parent level also apply to I97.110.

› From I97.1 Other postprocedural cardiac functional disturbances
Excludes2
  • acute pulmonary insufficiency following thoracic surgery (J95.1)
  • intraoperative cardiac functional disturbances (I97.7-)
› 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

1 entries

Terms in the official ICD-10-CM index that lead to I97.110.

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 →
  • 429.4Functional disturbances following cardiac surgeryapproximate
  • 429.4Functional disturbances following cardiac surgeryapproximate, combination
  • 997.1Cardiac complications, not elsewhere classifiedapproximate, combination

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 I97.110

Is I97.110 billable?

Yes. I97.110 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I97.110 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I97.110 as a principal diagnosis.

Is I97.110 a CC or MCC?

I97.110 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does I97.110 group to?

I97.110 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 I97.110?

The CMS General Equivalence Mappings map I97.110 to ICD-9-CM 429.4, 429.4 and 997.1.