I80.259
Billable codePhlebitis and thrombophlebitis of unspecified calf muscular vein
The ICD-10 code for phlebitis and thrombophlebitis of unspecified calf muscular vein is I80.259.
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.
- •Laterality-specific codes exist for this condition — confirm the affected side is documented.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- I80.251Phlebitis and thrombophlebitis of right calf muscular vein
- I80.252Phlebitis and thrombophlebitis of left calf muscular vein
- I80.253Phlebitis and thrombophlebitis of calf muscular vein, bilateral
- I80.259Phlebitis and thrombophlebitis of unspecified calf muscular vein
Associated MS-DRGs
I80.259 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.