Non-Billable / Non-Specific Code
ICD-10-CM I23 is the diagnosis code for Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period). This code falls under the section "Ischemic heart diseases" within Chapter 9 — Diseases of the circulatory system (I00-I99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where I23 sits in the ICD-10-CM classification helps ensure proper coding:
No, I23 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
I23 is the ICD-10-CM diagnosis code for "Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
I23 is located in Section I20-I25 — "Ischemic heart diseases" within Chapter 9 of the ICD-10-CM Tabular List.
I23 has 9 sub-code(s) that provide more specific detail: I23.0, I23.1, I23.2, I23.3, I23.4 and more.
Use I23 when the patients documented diagnosis matches "Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period) is I23.
No, I23 is non-billable. Use a more specific sub-code for primary diagnosis billing.
I23 is in Chapter 9 of the ICD-10-CM Tabular List.
Yes, I23 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.