ICD-10 Code M17.0: Bilateral primary osteoarthritis of knee

ICD-10 Code M17.0 is the billable diagnosis code for bilateral primary osteoarthritis of the knee. It covers degenerative “wear-and-tear” osteoarthritis (OA) in both knees, with no traumatic or secondary cause. Because one code covers both joints, most M17.0 billing mistakes come from splitting bilateral disease across the two unilateral knee codes, or missing the primary-versus-post-traumatic […]
ICD-10 M17.4: Other bilateral secondary knee osteoarthritis

ICD-10 code M17.4 is the billable diagnosis code for other bilateral secondary osteoarthritis of knee: osteoarthritis in both knees driven by an identifiable secondary condition rather than ordinary age-related wear. It is one code within the M17 family that covers bilateral osteoarthritis of the knees, and it is also one of the most under-coded. Clinicians […]
CPT code 01820: Anesthesia for closed procedures on radius, ulna, wrist, or hand bones

CPT code 01820: Definition and clinical description CPT code 01820 describes anesthesia services for all closed procedures performed on the radius, ulna, wrist, or hand bones. The American Medical Association (AMA), which maintains the Current Procedural Terminology (CPT) code set, revised both the short and medium descriptions for this code effective January 1, 2026. The […]
ICD-10 Code M15.3: Secondary multiple arthritis

ICD-10 Code M15.3 is the billable ICD-10-CM code for secondary multiple arthritis: degenerative joint disease across multiple joints with an identifiable underlying cause, such as prior trauma or inflammatory disease. Coders often default to the unspecified M15.9 instead, because the chart doesn’t state the causative condition in the terms payers require. It is a billable, […]
Action Research Arm Test (ARAT): Scoring and free PDF

The Action Research Arm Test (ARAT) scores upper limb function after stroke. Get administration steps, interpretation, and a free PDF sheet.
Anterior drawer test

Perform the anterior drawer test for ACL and ankle stability, grade tibial displacement 0–3+, and record findings with a free template.
ICD-10 code G80.8: Other cerebral palsy

ICD-10 code G80.8 is the billable ICD-10-CM code for other cerebral palsy: presentations that fall outside the named motor subtypes (G80.0 through G80.4) but are documented specifically enough to avoid the catch-all G80.9. This article explains what G80.8 covers, how it fits the G80 hierarchy, and the documentation a clinician needs to support it. This […]
Hexagon Agility Test

Set up, run, and score the hexagon agility test, with published rating norms by gender and a free downloadable recording sheet.
Muscular Strength Test

Run a muscular strength test with confidence: MRC 0-5 grading, 1RM, grip, and push-up protocols, plus a free downloadable template.
ICD-10 code M47.9: Spondylosis, unspecified

ICD-10 code M47.9 covers spondylosis, unspecified: Degenerative spine disease without a documented region. Billable, but often flagged.