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ICD10BillableValid for clinical use

ICD-10 Code I23.8: Other current complications following acute myocardial infarction

I23.8 is a billable ICD-10 diagnosis code used to classify Other current complications following acute myocardial infarction in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).

đź“‹Clinical overview

This ICD-10 code is commonly used when documentation describes a current complication following acute myocardial infarction. The most accurate code depends on whether the active complication is hemopericardium, septal defect, cardiac or valvular rupture, thrombosis, or another specified post-MI complication.

When is it used?

  • May be used when a clinician documents other current complications following acute myocardial infarction in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

đź©şClinical context

When commonly used
  • Inpatient, cardiology, critical-care, and utilization-review workflows where an acute myocardial infarction is complicated by a current structural, thrombotic, or mechanical cardiac consequence.
  • Coding workflows where the chart identifies the specific post-MI complication and that complication changes final code specificity beyond the acute myocardial infarction itself.
Common management context
  • Evaluation often includes hemodynamic assessment, echocardiography or catheterization context, rhythm and thrombotic review, and coordination across cardiology, critical-care, and procedural teams.
  • Documentation usually becomes more specific when the chart identifies the exact post-MI complication such as hemopericardium, septal defect, wall rupture, papillary or chordal rupture, thrombosis, or another specified current complication.
  • Specialist context already linked on this page includes Cardiologist, General Physician.

🔍Key distinctions

Important notes
  • This ICD-10 family captures current complications following acute myocardial infarction rather than the acute myocardial infarction itself.
  • The exact current complication pattern drives the final code specificity inside this family.
  • This title reflects another specified current complication following acute myocardial infarction that does not fit the named hemopericardium, septal-defect, rupture, or thrombosis branches.
  • Documentation that describes a current complication following acute myocardial infarction is coded differently from the acute myocardial infarction itself, chronic ischemic heart disease, or remote prior myocardial infarction without active complication.
Related codes to consider
I23.0Hemopericardium as current complication following acute myocardial infarction
Related post-myocardial-infarction ICD-10 code; documentation often becomes more specific when the chart identifies the exact mechanical or thrombotic complication following acute myocardial infarction, or distinguishes the complication from the acute infarction itself.
I23.1Atrial septal defect as current complication following acute myocardial infarction
Related post-myocardial-infarction ICD-10 code; documentation often becomes more specific when the chart identifies the exact mechanical or thrombotic complication following acute myocardial infarction, or distinguishes the complication from the acute infarction itself.
I23.2Ventricular septal defect as current complication following acute myocardial infarction
Related post-myocardial-infarction ICD-10 code; documentation often becomes more specific when the chart identifies the exact mechanical or thrombotic complication following acute myocardial infarction, or distinguishes the complication from the acute infarction itself.
I23.3Rupture of cardiac wall without hemopericardium as current complication following acute myocardial infarction
Related post-myocardial-infarction ICD-10 code; documentation often becomes more specific when the chart identifies the exact mechanical or thrombotic complication following acute myocardial infarction, or distinguishes the complication from the acute infarction itself.

Code hierarchy

chapter
9Diseases of the circulatory system (I00-I99)
block
I20-I25Ischemic heart diseases
category
I23Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
currentI23

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

CardiologistGeneral Physician

Coverage-related procedures and services

CPT 93325high
DOPPLER ECHOCARDIOGRAPHY COLOR FLOW VELOCITY MAPPING (LIST SEPARATELY IN ADDITION TO CODES FOR ECHOCARDIOGRAPHY)
Source: CMS coverage guidance
CPT 93320high
DOPPLER ECHOCARDIOGRAPHY, PULSED WAVE AND/OR CONTINUOUS WAVE WITH SPECTRAL DISPLAY (LIST SEPARATELY IN ADDITION TO CODES FOR ECHOCARDIOGRAPHIC IMAGING); COMPLETE
Source: CMS coverage guidance
CPT 93321high
DOPPLER ECHOCARDIOGRAPHY, PULSED WAVE AND/OR CONTINUOUS WAVE WITH SPECTRAL DISPLAY (LIST SEPARATELY IN ADDITION TO CODES FOR ECHOCARDIOGRAPHIC IMAGING); FOLLOW-UP OR LIMITED STUDY (LIST SEPARATELY IN ADDITION TO CODES FOR ECHOCARDIOGRAPHIC IMAGING)
Source: CMS coverage guidance
CPT 76376high
3D RENDERING WITH INTERPRETATION AND REPORTING OF COMPUTED TOMOGRAPHY, MAGNETIC RESONANCE IMAGING, ULTRASOUND, OR OTHER TOMOGRAPHIC MODALITY WITH IMAGE POSTPROCESSING UNDER CONCURRENT SUPERVISION; NOT REQUIRING IMAGE POSTPROCESSING ON AN INDEPENDENT WORKSTATION
Source: CMS coverage guidance
CPT 76377high
3D RENDERING WITH INTERPRETATION AND REPORTING OF COMPUTED TOMOGRAPHY, MAGNETIC RESONANCE IMAGING, ULTRASOUND, OR OTHER TOMOGRAPHIC MODALITY WITH IMAGE POSTPROCESSING UNDER CONCURRENT SUPERVISION; REQUIRING IMAGE POSTPROCESSING ON AN INDEPENDENT WORKSTATION
Source: CMS coverage guidance
CPT 93306high
ECHOCARDIOGRAPHY, TRANSTHORACIC, REAL-TIME WITH IMAGE DOCUMENTATION (2D), INCLUDES M-MODE RECORDING, WHEN PERFORMED, COMPLETE, WITH SPECTRAL DOPPLER ECHOCARDIOGRAPHY, AND WITH COLOR FLOW DOPPLER ECHOCARDIOGRAPHY
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
I23.8

Common synonyms

Other current complications following acute myocardial infarction

Frequently asked questions

Code details

CodeI23.8
SystemICD10
Display nameOther current complications following acute myocardial infarction
ChapterDiseases of the circulatory system (I00-I99)
BlockIschemic heart diseases

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Complication(s) (from) (of)Complication(s) (from) (of)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.