AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2022 Issue 3; Ask the Editor
Shoulder Impingement Versus Shoulder Impingement Syndrome
A 57-year-old female presented for follow-up of several left shoulder issues, including shoulder impingement. When referencing “Impingement, joint” in the Alphabetic Index, there is an instructional note “see Disorder, joint, specified type NEC.” This indexing pathway leads to subcategory M25.81, Other specified joint disorders, shoulder. However, ICD-10-CM provides specific codes for shoulder impingement syndrome under subcategory M75.4, Impingement syndrome of shoulder, which can be found in the Alphabetic Index under “Syndrome,” “impingement, shoulder.” What is the accurate code assignment for shoulder impingement, not further specified? ...
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Article Overview
This short coding article focuses on ICD-10-CM classification of a shoulder impingement diagnosis and how index terminology guides the coder to the appropriate category. It is intended for coding professionals, auditors, and clinicians who need help distinguishing between similar musculoskeletal terms in documentation. The article emphasizes where the diagnosis is found in the alphabetic index and highlights the general impact of wording on code assignment.
Why This Topic Matters
Accurate terminology review helps prevent misclassification of shoulder conditions and supports consistent ICD-10-CM code assignment for musculoskeletal encounters.
What You Will Learn
- How shoulder impingement is approached in ICD-10-CM indexing
- How similar musculoskeletal terms can lead to different classification pathways
- Why documentation wording matters for code assignment
- How to determine the relevant ICD-10-CM category for a non-specific shoulder impingement diagnosis
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation specialists
- Orthopedic office staff
- Billing professionals
Codes Discussed
Code Ranges Discussed
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