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Thrombolysis Coding Guide: CPT Codes 37211–37214, 37195, and 61645 Explained

Thrombolysis coding trips up even experienced coders because, unlike most procedures, it isn’t billed once — it’s billed per calendar day, sometimes across multiple days of treatment. This guide walks through exactly how catheter-directed thrombolysis is coded, with real-world examples so you can apply the rules with confidence. What Is Catheter-Directed Thrombolysis? Catheter-directed…

Modifier 25 Documentation : How Medical Coders Can Audit-Proof Every Claim

Introduction: Why Modifier 25 Remains One of the Highest-Risk Modifiers in Medical Coding Few modifiers draw as much sustained scrutiny from payers and auditors as modifier -25 (significant, separately identifiable evaluation and management service by the same physician on the same day of a procedure or other service). Medical coders, compliance officers, and clinical documentation teams should…

Central Venous Catheter Repair, Replacement, Removal & Guidance CPT Coding: A Complete Guide for Medical Coders

Introduction: Coding the Full Lifecycle of a Central Venous Access Device A central venous access device (CVAD) is rarely a “place it and forget it” procedure. Over the life of a catheter, physicians may need to repair it, replace part or all of it, remove it, reposition it, clear an obstruction from it, or sample blood through it. Each of these scenarios has its own distinct CPT code, and…

Peripherally Inserted Central Catheter (PICC) CPT Coding: A Complete Guide for Medical Coders

Introduction: Why PICC Line Coding Requires Precision Peripherally inserted central catheter (PICC) placement is one of the most frequently performed central venous access procedures, occurring both at the bedside and in interventional radiology. Because CPT differentiates PICC codes based on patient age, the presence or absence of imaging guidance, and whether an implanted port is attached,…

Venous Access and Venipuncture CPT Coding: A Detailed Guide for Medical Coders

Introduction: Why Venous Access Coding Matters Even Outside Radiology Venous access procedures — from a routine blood draw to a physician-performed venipuncture in a young child — are among the most frequently performed clinical services in medicine. While these procedures are not generally performed by radiology departments, medical coders across every specialty need a firm understanding of…

Vascular Interventional Radiology Coding: A Complete CPT and HCPCS Guide for Medical Coders

Introduction: Why Vascular IR Coding Is One of the Most Challenging Specialties in Medical Coding Interventional radiology (IR) coding is widely regarded as one of the most technically demanding areas in the medical coding profession, and vascular procedure coding sits at the center of that complexity. Coders who specialize in vascular and interventional radiology coding must combine a strong…

Nephrostomy Catheter CPT Coding Guide: Placement, Exchange & Conversion Codes Explained (50390–50435)

Introduction: Why Nephrostomy Catheter Coding Trips Up So Many Coders Percutaneous nephrostomy procedures are among the most frequently miscoded interventional radiology services — and it’s easy to see why. A single kidney drainage encounter might involve a brand-new tube placement, a routine tube exchange, a conversion from external to internal drainage, or a diagnostic study performed along the…

Urinary System CPT Coding Guide: Nephrostomy, Cystography & Percutaneous GU Procedures Explained

Introduction: Why Urinary System Coding Deserves Special Attention Coding for the genitourinary (GU) system is one of the more challenging areas in interventional radiology and urology billing. Like the biliary system, nearly all percutaneous GU procedure codes have been restructured in recent years, with many older surgical and Supervision & Interpretation (S&I) codes deleted and replaced by…

Liver Failure Coding: A Complete Guide to Accurate ICD-10-CM Assignment

Getting liver failure coding right takes a lot more than picking a code off a list. It calls for a real understanding of how the liver functions, how the disease progresses, what clinical clues to look for, and how documentation shapes the final code. If you’ve ever second-guessed whether a case is acute, chronic, or something in between, you’re not alone — this is one of the trickier areas in…

ICD-11: What the New Coding System Means for Healthcare (Complete Guide)

If you work anywhere near medical coding, billing, or health data, you’ve probably heard the buzz around ICD-11. The World Health Organization officially rolled it out on June 19, 2022, and it’s the biggest shake-up to disease classification in a generation. ICD-10, the version most of us grew up using, was approved way back in 1989 — that’s over three decades of patches, updates, and…

ICD-10-PCS Coding Guide for Brain and Cranial Cavity Procedures

Coding procedures performed within the cranial cavity is one of the more challenging areas of ICD-10-PCS coding. This guide breaks down the body part values, root operations, and section-specific rules coders need to accurately report brain and cranial cavity procedures, including bore holes, bypass procedures, neurostimulator insertion, brachytherapy, and New Technology section codes. What Makes…

ICD-10-CM 2027 Updates: A Complete Guide for Medical Coders

Every fall, medical coders brace for the same ritual: a fresh batch of ICD-10-CM codes rolls out, and suddenly the charts you coded in September need a second look come October. This year is no different. CMS has released the fiscal year (FY) 2027 ICD-10-CM code set, and it goes live on October 1, 2026. The headline numbers: 238 new codes, 4 revised codes, and 21 deleted codes. That might sound…

ICD-10-CM Coding for Transplant Patients: A Coder's Guide to Bone Marrow and Lung Transplants

ICD-10-CM Coding for Transplant Patients: A Coder’s Guide to Bone Marrow and Lung Transplants Meta description: Confused by transplant status vs. complication codes? Here’s a clear breakdown of ICD-10-CM coding for bone marrow and lung transplant patients, with real coding examples. Transplant patients show up in the inpatient setting constantly — sometimes for the transplant itself, sometimes…

RSV vs. COVID-19 in Infants and Children: How to Tell Them Apart

If you’ve ever stood over a coughing, feverish toddler and wondered “is this RSV or is this COVID?” — you’re not alone. Respiratory syncytial virus (RSV) and COVID-19 are two of the most common respiratory illnesses in infants and young children, and their symptoms overlap so much that even experienced clinicians sometimes need a lab test to be sure which one they’re dealing with. For parents,…

Recreational Drug Use vs. Poisoning: How to Tell the Difference in ICD-10-CM Coding

One of the more common points of confusion in ICD-10-CM coding involves distinguishing between recreational drug use and poisoning. While these two scenarios can look similar on the surface — both often involve a substance that wasn’t medically prescribed or properly used — they represent fundamentally different clinical situations, and coding them correctly depends entirely on what the…

HIV ICD-10-CM Coding: A Complete Guide to Accurate Code Assignment

Coding HIV-related diagnoses correctly is one of the more nuanced areas of ICD-10-CM coding — and getting it wrong can affect everything from reimbursement to quality reporting. Accurate coding requires more than just knowing the codes; it requires understanding the disease process itself, recognizing how HIV-related conditions are documented, and knowing when each code applies. This guide breaks…

2026 Medicare CTP Rule Changes: What Providers Need to Know About Skin Substitute Reimbursement

If you work in wound care billing or manage a practice that uses cellular tissue-based products (CTPs), January 1, 2026 brought some of the most significant Medicare reimbursement changes in recent memory. These updates have reshaped how skin substitutes are coded, billed, and paid — and the financial impact on providers and outpatient hospitals is substantial. Here’s a clear, practical breakdown…

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