Shoulder pain is classified under ICD-10-CM code M25.51, which requires specifying the affected side. Common billable codes include M25.511 (right shoulder), M25.512 (left shoulder), and M25.519 (unspecified shoulder).
Primary codes
Billable
Billable
Extension
—
7th character
—
POA exempt
No
Coding risks
- Coding based on lab values alone without provider interpretation
Hierarchy
Code comparison
Compare key differences between related codes to select the most specific option.
| Code | Description | Scenario |
|---|---|---|
| M25.511 | Pain in right shoulder | Patient with shoulder pain clearly documented on the right side. |
| M25.512 | Pain in left shoulder | Shoulder pain documented on the left side, with laterality clearly specified in the chart. |
| M25.519 | Pain in unspecified shoulder | Shoulder pain documented without laterality specified in the chart. |
Select the most specific code supported by the encounter documentation. More specific codes improve reimbursement accuracy and reduce audit risk.
Code ranges
Pain in joint
Category for joint pain not attributable to a specific structural diagnosis, subdivided by anatomic joint site and laterality.
Other joint disorders
Block covering acquired deformities, derangements, effusions, contractures, and pain of joints not classified elsewhere.
Shoulder lesions
Category for rotator cuff syndromes, adhesive capsulitis, impingement, bursitis, and bicipital tendinitis of the shoulder region.
Injuries to the shoulder and upper arm
Chapter 19 block for traumatic contusions, strains, sprains, dislocations, and fractures of the shoulder and upper arm.
Effusion of joint
Sibling subcategory for documented joint effusion, coded by joint site and laterality without an underlying arthropathy specified.
Coding risks
Avoid these common coding issues when reporting Shoulder Pain.
Impact
Assigning M25.51 without explicit laterality may default to M25.519, reducing specificity on the claim.
Mitigation
Consider querying the provider when laterality is absent rather than inferring from prior imaging or exam side.
Related codes
Ancillary and co-coding
Codes commonly reported with the primary diagnosis on the same claim.
Z-code variants
Family history, personal history, or screening encounter codes related to this condition.
Differential codes
Alternative or commonly confused codes to consider when documentation suggests a different condition than the primary diagnosis.
Frequently asked questions
Use M25.519 only when laterality is truly undocumented. Per guidelines, query the provider whenever right or left could reasonably be clarified.
References
Compiled from the following authoritative coding references. Last updated 2026-08-04.