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I97.820 ICD-10-CM Code: Postprocedural cerebrovascular infarction following cardiac surgery

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

  • MS-DRG 091 — OTHER DISORDERS OF NERVOUS SYSTEM WITH MCC (MDC 01)
  • MS-DRG 092 — OTHER DISORDERS OF NERVOUS SYSTEM WITH CC (MDC 01)
  • MS-DRG 093 — OTHER DISORDERS OF NERVOUS SYSTEM WITHOUT CC/MCC (MDC 01)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Postprocedural cerebrovascular infarction following cardiac surgery is a billable ICD-10-CM diagnosis code (I97.820).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for I97.820 in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code, if applicable, to further specify disorder

Indexed Clinical Terms (2)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Infarct, infarction, cerebral (acute), postprocedural, following cardiac surgery
  • Stroke (apoplectic) (brain) (ischemic) (paralytic), postprocedural, following cardiac surgery

Frequently Compared Codes

The official Excludes notes on I97.820 name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

  • FY2017 — 2016-10-01
    Description revised
    Postprocedural cerebrovascular infarction during cardiac surgery → Postprocedural cerebrovascular infarction following cardiac surgery
    FY2017 changes
  • FY2017 — 2016-10-01
    Short description revised
    Postprocedural cerebvasc infarction during cardiac surgery → Postproc cerebvasc infarction following cardiac surgery
    FY2017 changes

Verify Before Coding

  • CC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Relationships & Classification

Other codes that name I97.820 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

1 Excludes2 notes: G97 (via I97.82.-).

Potential MS-DRG Relationships (FY2026)

CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 58 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 3 MS-DRGs: DRG 091 (MDC 01), DRG 092 (MDC 01), DRG 093 (MDC 01).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):CIR038 — Postprocedural or postoperative circulatory system complication (default); CIR020 — Cerebral infarction.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical process (MS-DRG)

Acts as CC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

H59.89 — Other postprocedural complications and disorders of eye and adnexa, not elsewhere classified, H95.811 — Postprocedural stenosis of right external ear canal, H95.812 — Postprocedural stenosis of left external ear canal, H95.813 — Postprocedural stenosis of external ear canal, bilateral, H95.819 — Postprocedural stenosis of unspecified external ear canal, H95.88 — Other intraoperative complications and disorders of the ear and mastoid process, not elsewhere classified, H95.89 — Other postprocedural complications and disorders of the ear and mastoid process, not elsewhere classified, I97.3 — Postprocedural hypertension, I97.810 — Intraoperative cerebrovascular infarction during cardiac surgery, I97.811 — Intraoperative cerebrovascular infarction during other surgery, I97.821 — Postprocedural cerebrovascular infarction following other surgery, L76.81 — Other intraoperative complications of skin and subcutaneous tissue, L76.82 — Other postprocedural complications of skin and subcutaneous tissue, M96.89 — Other intraoperative and postprocedural complications and disorders of the musculoskeletal system, N98.1 — Hyperstimulation of ovaries, N98.2 — Complications of attempted introduction of fertilized ovum following in vitro fertilization, N98.3 — Complications of attempted introduction of embryo in embryo transfer, N98.8 — Other complications associated with artificial fertilization, N98.9 — Complication associated with artificial fertilization, unspecified, T81.82XA — Emphysema (subcutaneous) resulting from a procedure, initial encounter, +37 more

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (Postprocedural or postoperative circulatory system complication, Cerebral infarction).

I97.638 — Postprocedural hematoma of a circulatory system organ or structure following other circulatory system procedure, I97.640 — Postprocedural seroma of a circulatory system organ or structure following a cardiac catheterization, I97.641 — Postprocedural seroma of a circulatory system organ or structure following cardiac bypass, I97.648 — Postprocedural seroma of a circulatory system organ or structure following other circulatory system procedure, I97.710 — Intraoperative cardiac arrest during cardiac surgery, I97.711 — Intraoperative cardiac arrest during other surgery, I97.790 — Other intraoperative cardiac functional disturbances during cardiac surgery, I97.791 — Other intraoperative cardiac functional disturbances during other surgery, I97.810 — Intraoperative cerebrovascular infarction during cardiac surgery, I97.811 — Intraoperative cerebrovascular infarction during other surgery, I97.821 — Postprocedural cerebrovascular infarction following other surgery, I97.88 — Other intraoperative complications of the circulatory system, not elsewhere classified, I97.89 — Other postprocedural complications and disorders of the circulatory system, not elsewhere classified, R29.700 — NIHSS score 0, R29.701 — NIHSS score 1, R29.702 — NIHSS score 2, R29.703 — NIHSS score 3, R29.704 — NIHSS score 4, R29.705 — NIHSS score 5, R29.706 — NIHSS score 6, +164 more

Lab tests where this diagnosis supports Medicare coverage

Medicare's National Coverage Determinations list this diagnosis as medical justification for these lab tests.

Partial Thromboplastin Time (PTT) Test, Prothrombin Time Test and INR (PT/INR)

Contextual Map

Every relationship of I97.820 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • I00-I99 — Chapter 9: Diseases of the Circulatory System (I00-I99) (I00-I99) [Hierarchy]
  • I95-I99 — Other and unspecified disorders of the circulatory system [Hierarchy]

Referenced by Excludes2 notes

  • G97 — Intraoperative and postprocedural complications and disorders of nervous system, not elsewhere classified [Excludes2](via I97.82.-): “intraoperative and postprocedural cerebrovascular infarction (I97.81-, I97.82-)” · check together

Clinical classification (CCSR)

  • CIR038 — Postprocedural or postoperative circulatory system complication [CCSR]
  • CIR020 — Cerebral infarction [CCSR]

Potential MS-DRG

  • CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC).”
  • DRG 091 — OTHER DISORDERS OF NERVOUS SYSTEM WITH MCC [MS-DRG]: “OTHER DISORDERS OF NERVOUS SYSTEM WITH MCC (MDC 01)”
  • DRG 092 — OTHER DISORDERS OF NERVOUS SYSTEM WITH CC [MS-DRG]: “OTHER DISORDERS OF NERVOUS SYSTEM WITH CC (MDC 01)”
  • DRG 093 — OTHER DISORDERS OF NERVOUS SYSTEM WITHOUT CC/MCC [MS-DRG]: “OTHER DISORDERS OF NERVOUS SYSTEM WITHOUT CC/MCC (MDC 01)”

MDC crossing · procedures (8892)

  • MDC 01 — Diseases and Disorders of the Nervous System [MDC crossing]: “Diseases and Disorders of the Nervous System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • 0016070 — Bypass Cerebral Ventricle to Nasopharynx with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Nasopharynx with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • 0016071 — Bypass Cerebral Ventricle to Mastoid Sinus with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Mastoid Sinus with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • 0016072 — Bypass Cerebral Ventricle to Atrium with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Atrium with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • 0016073 — Bypass Cerebral Ventricle to Blood Vessel with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Blood Vessel with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • 0016074 — Bypass Cerebral Ventricle to Pleural Cavity with Autologous Tissue Substitute, Open Approach [Same-MDC procedure]: “Bypass Cerebral Ventricle to Pleural Cavity with Autologous Tissue Substitute, Open Approach — grouped in MDC 01, the procedure side of this code's crossing.” · check together
  • and 8887 more

Index entries

  • Infarct, infarction, cerebral (acute), postprocedural, following cardiac surgery[Index term]
  • Stroke (apoplectic) (brain) (ischemic) (paralytic), postprocedural, following cardiac surgery[Index term]

Nearest codes (40)

  • I97 — Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified [Sibling]
  • I97.41 — Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating a circulatory system procedure [Sibling]
  • I97.410 — Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating a cardiac catheterization [Sibling]
  • I97.411 — Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating a cardiac bypass [Sibling]
  • I97.418 — Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating other circulatory system procedure [Sibling]
  • I97.42 — Intraoperative hemorrhage and hematoma of a circulatory system organ or structure complicating other procedure [Sibling]
  • I97.5 — Accidental puncture and laceration of a circulatory system organ or structure during a procedure [Sibling]
  • I97.51 — Accidental puncture and laceration of a circulatory system organ or structure during a circulatory system procedure [Sibling]
  • and 32 more

Change history (2)

  • FY2017 — Description revised [Change history]
  • and 1 more

Nearest Codes in This Family

Official ICD-10-CM classifications closest to I97.820 in its code family, with their registry titles.

  • I97.79 — Other intraoperative cardiac functional disturbances
  • I97.790 — Other intraoperative cardiac functional disturbances during cardiac surgery
  • I97.791 — Other intraoperative cardiac functional disturbances during other surgery
  • I97.8 — Other intraoperative and postprocedural complications and disorders of the circulatory system, not elsewhere classified
  • I97.81 — Intraoperative cerebrovascular infarction
  • I97.810 — Intraoperative cerebrovascular infarction during cardiac surgery
  • I97.811 — Intraoperative cerebrovascular infarction during other surgery
  • I97.82 — Postprocedural cerebrovascular infarction
  • I97.821 — Postprocedural cerebrovascular infarction following other surgery
  • I97.88 — Other intraoperative complications of the circulatory system, not elsewhere classified

View all codes in the I97 family