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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.
103 guides
The Ultimate Guide to Laboratory Billing and Coding for Revenue Cycle Management
Discover best practices for laboratory billing and coding to optimize revenue cycle management in healthcare.
Funny ICD-10 Codes: What Odd Codes Teach About Specificity
Funny ICD-10 codes are real entries in a very detailed code set. Here is what they show about 7th characters, placeholder X and why specificity protects a claim.
ICD-10 Codes for UTI: N39.0, Cystitis N30 and Recurrent UTI
Which ICD-10-CM code fits a UTI note? Learn when N39.0 is right, how the N30 cystitis codes work, and how to handle recurrent UTI without guessing.
Cognitive Behavioral Therapy CPT Code: Which to Bill in 2026
There is no CBT-specific session code. Learn how session time picks 90832, 90834 or 90837, when 90785 applies and what a CBT note needs.
ICD-10 Code for Weight Loss: R63.4, R63.6, Z68 and E66
Which ICD-10 code reports weight loss, how R63.6, Z68 and E66 fit around it, and why a symptom code needs a documented workup behind it.
Radiology CPT Code Lookup: Find the Right Code by Study
A practical radiology CPT code lookup: find the code by study type, then check contrast, views, units and bundled items using the CMS 2026 NCCI manual.
Pathology CPT Codes: 88300-88309 Levels, 88321 and 26/TC
What the 88300-88309 levels mean, what CPT 88321 covers, how units work for stains and IHC, and when to use modifiers 26, TC, 91 and 59.
Palliative Care CPT Codes: E/M, ACP and ICD-10 Billing Guide
Which palliative care CPT codes apply by setting, how advance care planning and Medicare prolonged-service rules work, and what the note must show before the claim goes out.
Obstructive Sleep Apnea ICD-10 Code: G47.33 and G47.3x Codes
G47.33 is the ICD-10-CM code for obstructive sleep apnea. See the other G47.3x codes, the Excludes1 rules and the sleep study codes that go on the claim.
NSTEMI Type 1 vs 2: ICD-10-CM Codes I21.4 and I21.A1
NSTEMI type 1 vs 2 changes the ICD-10-CM code. See when I21.4 or I21.A1 applies, why the cause is coded first for type 2, and what to check before you...
Mental Health CPT Codes: A Comprehensive Guide
Optimize your revenue with our Mental Health CPT codes expertise. Get accurate reimbursements through our specialized Mental Health Medical Billing Services.
Diabetes ICD-10 Codes: E10, E11, O24 and Z79 Rules (FY2027)
Which diabetes ICD-10 codes fit type 1, type 2 and gestational diabetes, how Z79 and remission codes work, and what to check before a claim goes out.
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