Category: Medical Coding

Medical Billing Denial Codes

The Complete Guide to Medical Billing Denial Codes (CARC, RARC, CO/PR/OA)

Claim denials are more than an administrative headache — they’re lost revenue, wasted staff time, and sometimes broken patient relationships. Understanding medical billing denial codes (CARC, RARC, CO/PR/OA) is the first step to reducing denials and improving your practice’s financial health. This guide walks you through the most common denial codes, why they happen, how […]
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HCPCS L Codes

Complete Guide to HCPCS L Codes for Orthotic & Prosthetic Billing

Orthotic and prosthetic (O&P) services play a crucial role in improving patients’ mobility, supporting musculoskeletal alignment, and restoring physical function after trauma, surgery, or chronic conditions. To ensure accurate reimbursement for these medical devices, healthcare providers rely on the HCPCS Level II L Codes, which specifically describe orthotic and prosthetic procedures, supplies, and related components. […]
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ICD-10-CM Codes B00–B09

ICD-10-CM Code Range B00–B09: A Complete Guide

The ICD-10-CM code block B00–B09 covers viral infections that present with characteristic skin and mucous membrane lesions, including herpes viral infections, varicella (chickenpox), zoster (shingles), viral warts, and other viral diseases. These conditions are common in outpatient, dermatology, pediatrics, family medicine, and infectious disease practices—and require accurate code selection to ensure proper documentation, billing, and […]
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Neurostimulator programming CPT codes

Neurostimulator Programming CPT Codes: Complete Billing Guide

Neurostimulation therapy has rapidly evolved into a powerful treatment option for chronic pain, movement disorders, epilepsy, and other neurological conditions. As this technology becomes more advanced, the billing and coding processes surrounding neurostimulator implantation, analysis, and programming have also grown increasingly complex. For healthcare organizations, pain management specialists, neurologists, and RCM teams, understanding neurostimulator programming […]
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co 50 denial code

Complete Guide to CO 50 Denial Code: Causes, Solutions & Prevention

In the complex world of medical billing and insurance reimbursements, denial codes play a critical role in identifying why a claim was not processed or paid by the payer. Among the most frequently encountered denial messages, CO 50 – Non-Covered Services is one that often disrupts cash flow, delays reimbursement, and increases rework for billing […]
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HCPCS P Codes

HCPCS P Codes: Why Accurate Lab Billing Matters & How Allzone Helps

In the complex world of medical billing, HCPCS codes play a critical role in ensuring that healthcare providers are reimbursed correctly for the services they deliver. Among these, HCPCS P Codes are less frequently discussed but are incredibly important for laboratories, pathology services, and healthcare organizations that depend on precise coding for accurate payment. As […]
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Intestinal Infectious Diseases

A00–A09: Complete Guide to Intestinal Infectious Diseases Coding

Intestinal infectious diseases remain one of the most commonly reported medical conditions worldwide, leading to millions of outpatient visits and significant healthcare spending each year. In the ICD-10-CM code range A00–A09, these conditions include cholera, typhoid fever, shigellosis, foodborne illnesses, viral gastroenteritis, and other bacterial, viral, and parasitic infections affecting the digestive tract. Accurate coding […]
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CPT Code 93798

Ultimate Guide to CPT Code 93798: Cardiac Rehabilitation Billing Explained

Introduction: Accurate coding plays a critical role in ensuring timely and proper reimbursement for cardiology services. One of the most frequently used codes in cardiac rehabilitation billing is CPT Code 93798. This code represents physician-supervised exercise therapy for patients recovering from cardiac events, such as myocardial infarction, coronary bypass surgery, or heart transplantation. In this […]
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Denial code CO 45

Denial Code CO 45: Meaning, Causes, and Resolution Strategies

Key Takeaways: CO 45 = “Charge exceeds fee schedule/maximum allowable or contracted rate.” It usually represents a contractual adjustment, not a billable patient balance. Common causes include outdated fee schedules, incorrect coding, or missing modifiers. Prevention requires accurate contract management, claim scrubbing, and staff training. Partnering with Allzone helps healthcare providers streamline denial management and […]
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