ICD-10 Code I70: Atherosclerosis – Complete Coding & Billing Guide
ICD-10 code I70 is the category-level classification for atherosclerosis — the pathological buildup of lipid-rich plaques within arterial walls, leading to progressive stenosis, ischemia, and in advanced cases, gangrene or limb loss. I70 is a non-billable header code that organizes more than 100 specific subcodes covering arterial location, affected extremity, laterality, and severity level. Understanding […]
ICD-10 Code I69.391: Dysphagia Following Cerebral Infarction – Complete Coding & Billing Guide
ICD-10 code I69.391 is a billable diagnosis code identifying dysphagia following cerebral infarction — a swallowing impairment that persists as a direct sequela of an ischemic stroke. Valid through September 30, 2026 under the FY 2026 ICD-10-CM code set, I69.391 sits within the I69.39 subcategory (“Other sequelae of cerebral infarction”) and is assigned whenever neurologically […]
ICD-10 Code I67.81: Acute Cerebrovascular Insufficiency – Complete Coding & Billing Guide
ICD-10-CM code I67.81, designated for acute cerebrovascular insufficiency, is a billable diagnosis code used when a patient presents with a sudden, transient decline in cerebral blood supply that does not meet the clinical or imaging criteria for a confirmed stroke or transient ischemic attack (TIA). It sits within category I67 (Other Cerebrovascular Diseases) and is […]
ICD-10 Code I45.2: Bifascicular Block – Complete Coding & Billing Guide
ICD-10 code I45.2 designates bifascicular block, a cardiac conduction abnormality in which two of the three main fascicular pathways in the ventricular conduction system are impaired. This code sits within Chapter 9 (Diseases of the Circulatory System) of ICD-10-CM and is valid for all HIPAA-covered transactions in fiscal year 2026 (October 1, 2025 – September […]
ICD-10 Code I45.6: Wolff-Parkinson-White Syndrome – Complete Coding & Billing Guide
ICD-10 code I45.6 designates Wolff-Parkinson-White (WPW) syndrome, a cardiac conduction disorder characterized by the presence of an accessory pathway (bundle of Kent) that bypasses the atrioventricular (AV) node, creating pre-excitation of the ventricles. This accessory pathway can trigger rapid arrhythmias — most commonly atrioventricular reentrant tachycardia (AVRT) or atrial fibrillation with rapid ventricular response — […]
ICD-10 Code I12: Hypertensive Chronic Kidney Disease – Complete Coding & Billing Guide
ICD-10 code I12 is the category code for hypertensive chronic kidney disease (CKD) — a combination diagnosis that ICD-10-CM presumes whenever both hypertension and chronic kidney disease appear in a patient’s record, regardless of whether the provider explicitly documents a causal link. This presumed relationship is one of the most consequential and frequently misapplied coding […]
ICD-10 Codes I10–I1A: Hypertensive Diseases – Complete Coding & Billing Guide
The ICD-10-CM code range I10–I1A, titled Hypertensive Diseases, is one of the most frequently coded — and most frequently audited — diagnostic categories in all of medical billing. Despite the apparent simplicity of I10 (the workhorse code for essential hypertension), the full I10–I1A family contains critical distinctions that determine whether a claim is paid, questioned, […]
ICD-10 Code H81.1: Benign Paroxysmal Vertigo – Complete Coding & Billing Guide
What Does ICD-10 Code H81.1 Mean? ICD-10-CM code H81.1 designates benign paroxysmal vertigo (BPV) — a vestibular disorder characterized by brief, intense episodes of spinning sensation triggered by specific changes in head position. It falls under the broader category H81, Disorders of Vestibular Function, within the Diseases of the Ear and Mastoid Process chapter (H60–H95). […]
ICD-10 Code H61.22: Impacted Cerumen, Left Ear – Complete Coding & Billing Guide
ICD-10 code H61.22 designates a diagnosis of impacted cerumen, left ear — a condition in which earwax has accumulated to a degree that it cannot clear through normal physiological mechanisms and is producing symptoms or obstructing clinical examination of the left ear canal. This is a billable, laterality-specific code valid for all HIPAA-covered transactions from […]
ICD-10 Code G80.0: Spastic Quadriplegic Cerebral Palsy – Complete Coding & Billing Guide
What Does ICD-10 Code G80.0 Mean? ICD-10-CM code G80.0 designates a diagnosis of spastic quadriplegic cerebral palsy — a nonprogressive neurological disorder originating from brain damage sustained during the prenatal, perinatal, or early postnatal period, resulting in increased muscle tone (spasticity) that affects all four limbs and, typically, the trunk. It is the most severe […]