Is I80 a billable ICD-10-CM code?

No. I80 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does I80 sit in the tabular list?

Diseases of the circulatory system (I00-I99), in the block Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89).

What cannot be coded together with I80?

I80 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

I80

I80 — Phlebitis and thrombophlebitis

Non-billable headerICD-10-CM

I80 is a non-billable header ICD-10-CM code for phlebitis and thrombophlebitis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

venous embolism and thrombosis of lower extremities (I82.4-, I82.5-, I82.81-)

Code first

The underlying condition must be sequenced before this code.

, if applicable: phlebitis and thrombophlebitis complicating abortion, ectopic or molar pregnancy (O00-O07, O08.7)
phlebitis and thrombophlebitis complicating pregnancy, childbirth and the puerperium (O22.-, O87.-)

Includes

Conditions this code covers.

endophlebitis
inflammation, vein
periphlebitis
suppurative phlebitis

Other codes that can never be billed with I80

These codes carry an Excludes1 note pointing at I80. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I80 alone.

N61Inflammatory disorders of breast

Risk adjustment

I80 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead I80

6 child codes. Green means billable.

Questions about I80

Is I80 a billable ICD-10-CM code?: No. I80 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I80 sit in the tabular list?: Diseases of the circulatory system (I00-I99), in the block Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89).
What cannot be coded together with I80?: I80 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.