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Medical Coding (ICD-10, CPT, & Modifiers)
Plain-English guides to ICD-10, CPT and HCPCS coding, modifiers, and the payer rules that decide whether a claim pays. Written for practice managers, coders and billers.
102 guides
90832 CPT Code: Time Range, Documentation and Billing Rules
What the 90832 CPT code reports, the 16 to 37 minute time range, how to document a short session, and the Medicare checkpoints that decide whether the claim pays.
Coding and Billing for Mental Health Services: CPT Guide
A sourced map of mental health CPT codes: intake, psychotherapy time bands, add-ons, crisis, family and group, telehealth and behavioral health integration.
Adjustment Disorder ICD-10 Code: F43.20 to F43.25 Guide
Which F43.2x code do you report for adjustment disorder? A plain map from DSM-5-TR subtype to ICD-10-CM code, what the note must show, and the mistakes that cause denials.
99484 CPT Code: General BHI Billing Rules and Documentation
What the 99484 CPT code covers, who can bill it, the 20-minute monthly threshold, the consent and documentation Medicare expects, and how it differs from collaborative care.
97035 CPT Code: Ultrasound Billing, Units and Documentation
How the 97035 CPT code is billed for therapeutic ultrasound: Medicare's minutes-to-units chart, a CMS example where ultrasound cannot be billed, the modifiers to check and the note details that...
90853 CPT Code Description: Group Therapy Billing Rules
What the 90853 CPT code description covers, how it differs from 90849 and the family codes, and what payers expect in group therapy notes, with payer limits you can check.
Cat Bite ICD-10 Codes: Injury, External Cause and Infection
How to code a cat bite on a claim: the injury code by body site, the W55.01XA external cause code, and a separate code when infection is documented.
ICD-10 R53.1 Weakness: Coding Rules and Excludes1 Codes
ICD-10 R53.1 is the symptom code for weakness. Here is when to use it, which Excludes1 codes replace it, and how to document it.
Understanding the Physical therapy of CPT Code
Discover essential CPT codes for physical therapy, their importance, and best practices for accurate billing and documentation.
CPT, ICD-10 and HCPCS Codes: What Each One Does on a Claim
Three code sets, three jobs. See what CPT, ICD-10 and HCPCS each report, who maintains them, how often they change and how they fit on one claim.
POS 10 Telehealth: When to Use It and How Medicare Pays
A plain guide to POS 10 telehealth coding: when it replaces POS 02, how Medicare pays it since 2024, and what to check before the claim goes out.
Skin Substitute CPT Codes 15271-15278: Billing Guide
Skin substitute CPT codes 15271-15278 report the application, not the product. Learn how to choose the code family, count wound area and handle Medicare's 2026 payment change.
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