Medical Coding Archives - One O Seven RCM

CPT Code 20550: 2026 Billing Guide for Tendon Sheath Injections

CPT code 20550 tendon sheath injection billing 2026 hero banner: single tendon sheath, ligament, or aponeurosis per site, RT/LT and F-series finger modifiers, 5-unit MUE per date of service, the January 2026 Article A57079 revision restricting carpal tunnel to CPT 20526, and 662 covered ICD-10 codes, from One O Seven RCM.

CPT 20550 covers a single injection into one tendon sheath, ligament, or aponeurosis, such as the plantar fascia. The official American Medical Association descriptor reads: “Injection(s); single tendon sheath, or ligament, aponeurosis (eg, plantar ‘fascia’).” You’re either picking the code, sorting out the modifier, or working a 20550 cpt code denial that already came back. […]

CPT Code 76700: Complete Abdominal Ultrasound Billing Guide

CPT code 76700 complete abdominal ultrasound billing 2026 hero banner: all 8 required structures including liver, gallbladder, pancreas, and IVC, downcode to 76705 when documentation is thin, modifier 26/TC component rules, the 76770 retroperitoneal recoupment trap, and 2026 dual conversion factor rates, from One O Seven RCM.

76700 CPT Code Essentials Billers who look up the 76700 CPT code usually need three answers fast: what counts as complete, which modifier belongs on the claim, and what Medicare pays for it in 2026. This guide covers all three, along with the denial codes that surface when any of them go wrong. Every section […]

Pulmonary Congestion ICD-10: The FY2026 Coding, Documentation and Denial Guide

Pulmonary congestion ICD-10 2026 hero banner: J81.1 chronic pulmonary edema versus J81.0 acute, the Excludes1 note routing heart failure cases to I50.1, R09.89 for chest congestion versus R09.81 for nasal, invalid codes I50.0 and I50.1B still circulating online, and MS-DRG 189 grouping under grouper v43.1, from One O Seven RCM.

QUICK ANSWERPulmonary congestion ICD-10 assignment starts from an absence. No ICD-10-CM code carries pulmonary congestion as its title. The ICD-10 code for pulmonary congestion is J81.1, Chronic pulmonary edema, because the FY2026 Tabular List carries pulmonary congestion (chronic)(passive) as an inclusion term under it.J81.1 is billable. Acute presentations take J81.0. Pulmonary edema NOS sits under […]

CO-119 Denial Code: Benefit Maximum for This Time Period or Occurrence Has Been Reached

CO-119 denial code 2026 hero banner: benefit maximum reached under CARC 119, CO group code provider write-off versus PR-119 patient balance, the 2026 KX modifier threshold at $2,480, N362 and N435 remark code pairings, and the five-branch decision path from dispute to write-off, from One O Seven RCM.

What does CO-119 mean on an EOB? CO-119 on an EOB means the payer has determined the patient’s benefit maximum for that service and time period is used up. The official X12 co-119 denial code description reads: “Benefit maximum for this time period or occurrence has been reached.” The CO prefix assigns the unpaid balance […]

CO-6 Denial Code: What It Means, Why It Happens, and How to Fix It

CO-6 denial code 2026 hero banner: procedure or revenue code inconsistent with patient age, CO group code assigning liability to the provider not the patient, RARC M37 and N30 pairings, CO-6 versus CO-7 versus CO-9 demographic edit family, and the corrected claim versus appeal decision path, from One O Seven RCM.

CO-6 is a Claim Adjustment Reason Code meaning the procedure or revenue code billed is inconsistent with the patient’s age on the claim. The CO group code assigns the adjustment to the provider, so the balance can’t be billed to the patient. CARC 6 is a demographic edit. It doesn’t evaluate medical necessity. Inside the […]

PR-3 Denial Code: What CARC 3 Means and When You Can Bill the Patient

PR-3 denial code 2026 hero banner: CARC 3 copayment amount paired with group code PR, an adjustment not a denial with no appeal path, CO-3 as a payer mapping error instead of a write-off, secondary coverage sequencing before patient billing, and the QMB, preventive care, and out-of-pocket maximum exceptions, from One O Seven RCM.

PR-3 pairs group code PR, Patient Responsibility, with Claim Adjustment Reason Code 3. X12 defines CARC 3 as Co-payment Amount. The payer processed the claim and paid its contracted share. The copay is the patient’s fixed per-visit fee under their plan. Post it to the patient ledger and bill the patient. A PR-3 denial code […]

Aortic Stenosis ICD-10: The FY2026 Coding, Documentation and Denial Guide

Aortic stenosis ICD-10 2026 hero banner: I35.0 nonrheumatic aortic stenosis at every severity, I06.0 for rheumatic origin, I35.2 combined stenosis and insufficiency, Q23.81 bicuspid valve add-on, three post-TAVR status codes Z95.2, Z95.3, and Z95.4, and the pending September 2026 CMS TAVR coverage decision, from One O Seven RCM.

Quick answer In medical billing, the aortic stenosis ICD-10 code is I35.0, nonrheumatic aortic (valve) stenosis, which covers degenerative and calcific narrowing of the aortic valve that isn’t caused by rheumatic fever. Alternative aortic stenosis ICD-10 codes apply depending on what caused the disease, and on whether regurgitation appears alongside the narrowing. There’s no separate […]

ICD-10 Code for Atrial Fibrillation: The FY2026 I48 Coding and Denial Guide

ICD-10 code for atrial fibrillation 2026 hero banner: I48.91 unspecified versus I48.0 paroxysmal, I48.11 longstanding persistent, I48.19 persistent, I48.20 chronic, and I48.21 permanent, all six codes mapping to the same HCC 238 risk category, no ICD-10 code existing for AFib with RVR, and CC status applying only when AFib is a comorbidity, from One O Seven RCM.

The ICD-10 code for atrial fibrillation is I48.91 when the provider documents AFib without specifying the type. Nine billable codes sit in the I48 family, and choosing the wrong one costs you a CC on inpatient claims or a denial on outpatient ones. That number catches most billing teams off guard. Six codes cover fibrillation, […]

CPT code 93460 billing guide for cardiology practices

CPT 93460 combined heart catheterization billing 2026 hero banner: right heart cath, left heart cath, and coronary angiography in one code, LV ventriculography included when performed but not required, the LCD's seldom-necessary default for combining both sides, 93458 and 93461 crosswalk comparison, and modifier 26/TC component split by setting, from One O Seven RCM.

CPT code 93460 reports a combined right and left heart catheterization with coronary angiography performed in one session. The code covers catheter placement, intraprocedural injections, imaging supervision and interpretation, and left ventriculography when performed. One base code describes the whole documented combination, so the component codes don’t get billed alongside it. Performing every component doesn’t […]

CPT Code 93454: Billing Guidelines, Documentation and 2026 Updates

CPT 93454 coronary angiography billing 2026 hero banner: native coronary angiography without left heart catheterization, billed once per catheterization not per vessel, 93458 crosswalk when a chamber study is documented, FFR and IVUS add-on codes available on diagnostic-only studies, and same-day PCI bundling under CMS articles A52850 and A57479, from One O Seven RCM.

CPT code 93454 reports selective catheter placement in the native coronary arteries for diagnostic coronary angiography. The code covers the intraprocedural coronary injections, the angiographic imaging, and the imaging supervision and interpretation that go with that study. It doesn’t include right heart catheterization or left heart catheterization, and it doesn’t represent bypass graft angiography. Coders […]

Category: Medical Coding