ICD-10-CM Codes
I00-I99 Diseases of the circulatory system
I80-I89 Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
I80- Phlebitis and thrombophlebitis
2021 ICD-10-CM Diagnosis Code I80.21

2021 ICD-10-CM Diagnosis Code I80.21

Phlebitis and thrombophlebitis of iliac vein

2016

2017

2018

2019

2020

2021

Non-Billable/Non-Specific Code

I80.21 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2021 edition of ICD-10-CM I80.21 became effective on October 1, 2020.
This is the American ICD-10-CM version of I80.21 - other international versions of ICD-10 I80.21 may differ.

Applicable To

Phlebitis and thrombophlebitis of common iliac vein
Phlebitis and thrombophlebitis of external iliac vein
Phlebitis and thrombophlebitis of internal iliac vein

The following code(s) above I80.21 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to I80.21:

I00-I99
2021 ICD-10-CM Range I00-I99
Diseases of the circulatory system
Type 2 Excludes
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Diseases of the circulatory system
I80
ICD-10-CM Diagnosis Code I80
Phlebitis and thrombophlebitis
Code First
- 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
- endophlebitis
- inflammation, vein
- periphlebitis
- suppurative phlebitis
Type 1 Excludes
- venous embolism and thrombosis of lower extremities (I82.4-, I82.5-, I82.81-)
Phlebitis and thrombophlebitis

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to I80.21:

Phlebitis (infective) (pyemic) (septic) (suppurative) I80.9
ICD-10-CM Diagnosis Code I80.9
Phlebitis and thrombophlebitis of unspecified site
- leg I80.3
  ICD-10-CM Diagnosis Code I80.3
  Phlebitis and thrombophlebitis of lower extremities, unspecified
  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  - deep (vessels) I80.20-
    ICD-10-CM Diagnosis Code I80.20-
    Phlebitis and thrombophlebitis of unspecified deep vessels of lower extremities
    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    - iliac I80.21-
- iliac vein I80.21- (common) (external) (internal)
Thrombophlebitis I80.9
ICD-10-CM Diagnosis Code I80.9
Phlebitis and thrombophlebitis of unspecified site
- iliac vein I80.21- (common) (external) (internal)

ICD-10-CM Codes Adjacent To I80.21

I80.10 Phlebitis and thrombophlebitis of unspecified femoral vein

I80.11 Phlebitis and thrombophlebitis of right femoral vein

I80.12 Phlebitis and thrombophlebitis of left femoral vein

I80.13 …… bilateral

I80.2 Phlebitis and thrombophlebitis of other and unspecified deep vessels of lower extremities

I80.20 Phlebitis and thrombophlebitis of unspecified deep vessels of lower extremities

I80.201 Phlebitis and thrombophlebitis of unspecified deep vessels of right lower extremity

I80.202 Phlebitis and thrombophlebitis of unspecified deep vessels of left lower extremity

I80.203 …… bilateral

I80.209 Phlebitis and thrombophlebitis of unspecified deep vessels of unspecified lower extremity

I80.21 Phlebitis and thrombophlebitis of iliac vein

I80.211 Phlebitis and thrombophlebitis of right iliac vein

I80.212 Phlebitis and thrombophlebitis of left iliac vein

I80.213 …… bilateral

I80.219 Phlebitis and thrombophlebitis of unspecified iliac vein

I80.22 Phlebitis and thrombophlebitis of popliteal vein

I80.221 Phlebitis and thrombophlebitis of right popliteal vein

I80.222 Phlebitis and thrombophlebitis of left popliteal vein

I80.223 …… bilateral

I80.229 Phlebitis and thrombophlebitis of unspecified popliteal vein

I80.23 Phlebitis and thrombophlebitis of tibial vein

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2021 ICD-10-CM Diagnosis Code I80.21

Phlebitis and thrombophlebitis of iliac vein

Diseases of the circulatory system

Phlebitis and thrombophlebitis

Phlebitis and thrombophlebitis of unspecified site

Phlebitis and thrombophlebitis of lower extremities, unspecified

Phlebitis and thrombophlebitis of unspecified deep vessels of lower extremities

Phlebitis and thrombophlebitis of unspecified site