M75.82 identifies soft tissue shoulder lesions of the left shoulder that don't fit a more specific M75 subcategory — such as adhesive capsulitis, rotator cuff tear, bicipital tendinitis, calcific tendinitis, impingement syndrome, or bursitis.

Documentation tips

What should appear in the chart to support M75.82.

Source · Editorial brief grounded in 7 cited references ↓

• Explicitly state 'left shoulder' in the diagnosis line — laterality must be provider-documented, not inferred from procedure notes or imaging headers.
• Name the specific lesion type (e.g., 'posterior capsular contracture,' 'coracohumeral ligament thickening') to justify why a more specific M75 code doesn't apply.
• Include MRI or ultrasound findings linked to the diagnosis — document structure involved, extent of abnormality, and whether findings are acute, chronic, or degenerative.
• Record ROM measurements, provocative test results (e.g., Neer, Hawkins, Speed's), and strength deficits to support medical necessity for PT or imaging orders.
• If conservative treatment has been attempted, document type, duration, and patient response — this supports medical necessity for advanced imaging or surgical intervention.
• Avoid generic terms like 'left shoulder pain' as the primary diagnosis; M75.82 requires a documented lesion, not just a symptom.

Related CPT procedures

Procedure codes commonly billed with M75.82. Linking the right diagnosis to the right procedure is what establishes medical necessity.

Source · CMS LCDs · AAOS specialty guidance · claims-pattern analysis

Common coding pitfalls

The recurring mistakes coders make with M75.82 and adjacent codes.

Source · Editorial brief grounded in CDC ICD-10-CM tabular guidance, AAOS coding references, and cited references ↓

• Defaulting to M75.82 before ruling out specific M75 subcategories — always check M75.0 through M75.5 first; M75.82 is a residual category.
• Using M75.80 (unspecified shoulder) when laterality is clearly documented as left — this is a specificity error and a common audit trigger.
• Confusing chronic degenerative tears with traumatic tears: non-traumatic rotator cuff pathology belongs in M75.11x/M75.12x, not M75.82, even if the provider uses the word 'tear.'
• Coding M75.82 alongside M89.0- without checking whether the Excludes2 note applies — the conditions must be clinically distinct to report both.
• Applying a 7th-character extension to M75.82 — M-codes in this block do not use 7th-character encounter extensions (those apply to S-codes for traumatic injuries).

Clinical context

Source · Editorial summary grounded in 7 cited references ↓

Sibling codes

Other billable codes under M75.8 (laterality / anatomic variants).