M25.40
Billable codeEffusion, unspecified joint
The ICD-10 code for effusion, unspecified joint is M25.40.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- M25.41Effusion, shouldernon-billable header
- M25.42Effusion, elbownon-billable header
- M25.43Effusion, wristnon-billable header
- M25.44Effusion, handnon-billable header
- M25.45Effusion, hipnon-billable header
- M25.46Effusion, kneenon-billable header
- M25.47Effusion, ankle and footnon-billable header
- M25.48Effusion, other site
- M25.40Effusion, unspecified joint
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 71900Approximate match
- 71909Approximate match
Associated MS-DRGs
M25.40 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.