I80.02 ICD-10-CM Code: Phlebitis and thrombophlebitis of superficial vessels of left lower extremity
I80.02 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC Buddy coding tools
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FY 2026 Apr update / Diseases of the circulatory system (I00-I99) / Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89)
I80.02
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidancePhlebitis and thrombophlebitis of superficial vessels of left lower extremity
This code describes inflammation of a vein (phlebitis) or inflammation with a blood clot (thrombophlebitis) in the shallow veins of the left leg. This condition causes pain, swelling, and redness in the affected area.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
Official- Phlebitis and thrombophlebitis of femoropopliteal veinInherited from I80.0
Excludes 2
Official- certain conditions originating in the perinatal period (P04-P96)Inherited from I00-I99
- certain infectious and parasitic diseases (A00-B99)Inherited from I00-I99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)Inherited from I00-I99
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Inherited from I00-I99
- endocrine, nutritional and metabolic diseases (E00-E88)Inherited from I00-I99
- injury, poisoning and certain other consequences of external causes (S00-T88)Inherited from I00-I99
- neoplasms (C00-D49)Inherited from I00-I99
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)Inherited from I00-I99
- systemic connective tissue disorders (M30-M36)Inherited from I00-I99
- transient cerebral ischemic attacks and related syndromes (G45.-)Inherited from I00-I99
Related Codes
Includes
Official- endophlebitisInherited from I80
- inflammation, veinInherited from I80
- periphlebitisInherited from I80
- suppurative phlebitisInherited from I80
Excludes 1
Official- venous embolism and thrombosis of lower extremities (I82.4-, I82.5-, I82.81-)Inherited from I80
Code First
Official- , if applicable: phlebitis and thrombophlebitis complicating abortion, ectopic or molar pregnancy (O00-O07, O08.7)Inherited from I80
- phlebitis and thrombophlebitis complicating pregnancy, childbirth and the puerperium (O22.-, O87.-)Inherited from I80
Use Additional
OfficialNo Use Additional Code instructions are included in this display for I80.02. Check the code and parent instructions in the Code Book.
Code Also
OfficialNo Code Also instructions are included in this display for I80.02. Check the code and parent instructions in the Code Book.
Buddy Documentation Tip
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is I80.02 an HCC code?
No. I80.02 is a billable ICD-10-CM code with no mapping under the current CMS-HCC V28 community payment model, and none under the ESRD, Part D RxHCC, or HHS-HCC models.
- Code
- I80.02
- Description
- Phlebitis and thrombophlebitis of superficial vessels of left lower extremity
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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What This Code Means
I80.02 is the ICD-10-CM diagnosis code for phlebitis and thrombophlebitis of superficial vessels of left lower extremity. This code describes inflammation of a vein (phlebitis) or inflammation with a blood clot (thrombophlebitis) in the shallow veins of the left leg. This condition causes pain, swelling, and redness in the affected area. I80.02 sits in the ICD-10-CM chapter for diseases of the circulatory system (i00-i99), within the section covering diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (i80-i89).
I80.02 is a billable ICD-10-CM code, but no current CMS-HCC V28 community payment mapping is shown, and none under the ESRD, Part D RxHCC, or HHS-HCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
Verify documentation specifies the LEFT lower extremity; use I80.01 for right side and I80.00 for unspecified side.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for I80.02 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.