ICD-10 Code for Phlebitis
Also indexed as (infective) (pyemic) (septic) (suppurative)
The ICD-10-CM code for phlebitis is I80.9 — Phlebitis and thrombophlebitis of unspecified site. This is the code the Alphabetic Index gives for phlebitis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
I80.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which phlebitis code should you use?
The Alphabetic Index lists 22 codes under Phlebitis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| breast, superficial | I80.8 | Phlebitis and thrombophlebitis of other sites | |
| calf muscular vein | I80.25 | Phlebitis and thrombophlebitis of calf muscular vein | not billable |
| chest wall, superficial | I80.8 | Phlebitis and thrombophlebitis of other sites | |
| during or resulting from a procedure | T81.72 | Complication of vein following a procedure, not elsewhere classified | not billable |
| femoral vein | I80.1 | Phlebitis and thrombophlebitis of femoral vein | not billable |
| femoropopliteal vein | I80.0 | Phlebitis and thrombophlebitis of superficial vessels of lower extremities | not billable |
| gastrocnemial vein | I80.25 | Phlebitis and thrombophlebitis of calf muscular vein | not billable |
| hepatic veins | I80.8 | Phlebitis and thrombophlebitis of other sites | |
| iliac vein | I80.21 | Phlebitis and thrombophlebitis of iliac vein | not billable |
| intracranial | G08 | Intracranial and intraspinal phlebitis and thrombophlebitis | |
| intraspinal venous sinuses and veins | G08 | Intracranial and intraspinal phlebitis and thrombophlebitis | |
| leg | I80.3 | Phlebitis and thrombophlebitis of lower extremities, unspecified | |
| migrans, migrating | I82.1 | Thrombophlebitis migrans | |
| peroneal vein | I80.24 | Phlebitis and thrombophlebitis of peroneal vein | not billable |
| portal | K75.1 | Phlebitis of portal vein | |
| postoperative | T81.72 | Complication of vein following a procedure, not elsewhere classified | not billable |
| puerperal, postpartum, childbirth | O87.0 | Superficial thrombophlebitis in the puerperium | |
| soleal vein | I80.25 | Phlebitis and thrombophlebitis of calf muscular vein | not billable |
| specified site NEC | I80.8 | Phlebitis and thrombophlebitis of other sites | |
| syphilitic | A52.09 | Other cardiovascular syphilis | |
| ulcerative | I80.9 | Phlebitis and thrombophlebitis of unspecified site | |
| umbilicus | I80.8 | Phlebitis and thrombophlebitis of other sites |
Phlebitis intracranial
| nonpyogenic | I67.6 | Nonpyogenic thrombosis of intracranial venous system |
Phlebitis intraspinal venous sinuses and veins
| nonpyogenic | G95.19 | Other vascular myelopathies |
Phlebitis leg
| deepNEC | I80.20 | Phlebitis and thrombophlebitis of unspecified deep vessels of lower extremities | not billable |
| femoral vein | I80.1 | Phlebitis and thrombophlebitis of femoral vein | not billable |
| superficial | I80.0 | Phlebitis and thrombophlebitis of superficial vessels of lower extremities | not billable |
| deepNEC › iliac | I80.21 | Phlebitis and thrombophlebitis of iliac vein | not billable |
| deepNEC › popliteal vein | I80.22 | Phlebitis and thrombophlebitis of popliteal vein | not billable |
| deepNEC › specified vessel NEC | I80.29 | Phlebitis and thrombophlebitis of other deep vessels of lower extremities | not billable |
| deepNEC › tibial vein | I80.23 | Phlebitis and thrombophlebitis of tibial vein | not billable |
Phlebitis pelvic
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources