ICD-10-CM 2027 diagnosis code
I87.0Postthrombotic syndrome
I87.0 is a header code, so it can't be reported by itself. Choose one of the 5 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About I87.0
I87.0 is the ICD-10-CM diagnosis code for Postthrombotic syndrome. It belongs to category I87 (other disorders of veins), block I80-I89 (diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.
Within I87 (other disorders of veins), I87.0 is specifically for Postthrombotic syndrome. Related codes cover compression of vein (I87.1), venous insufficiency (chronic) (peripheral) (I87.2), chronic venous hypertension (idiopathic) (I87.3), other specified disorders of veins (I87.8) and disorder of vein, unspecified (I87.9).
To report this condition, pick the subcode that matches the documentation: I87.00 (without complications), I87.01 (with ulcer), I87.02 (with inflammation), I87.03 (with ulcer and inflammation) and I87.09 (with other complications).
Don't report I87.0 together with the conditions in its Excludes1 note: chronic venous hypertension without deep vein thrombosis (I87.3-).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under I87.0
- I87.00Postthrombotic syndrome without complications
- I87.001Postthrombotic syndrome without complications of right lower extremityBillable
- I87.002Postthrombotic syndrome without complications of left lower extremityBillable
- I87.003Postthrombotic syndrome without complications of bilateral lower extremityBillable
- I87.009Postthrombotic syndrome without complications of unspecified extremityBillable
- I87.01Postthrombotic syndrome with ulcer
- I87.011Postthrombotic syndrome with ulcer of right lower extremityBillable
- I87.012Postthrombotic syndrome with ulcer of left lower extremityBillable
- I87.013Postthrombotic syndrome with ulcer of bilateral lower extremityBillable
- I87.019Postthrombotic syndrome with ulcer of unspecified lower extremityBillable
- I87.02Postthrombotic syndrome with inflammation
- I87.021Postthrombotic syndrome with inflammation of right lower extremityBillable
- I87.022Postthrombotic syndrome with inflammation of left lower extremityBillable
- I87.023Postthrombotic syndrome with inflammation of bilateral lower extremityBillable
- I87.029Postthrombotic syndrome with inflammation of unspecified lower extremityBillable
- I87.03Postthrombotic syndrome with ulcer and inflammation
- I87.031Postthrombotic syndrome with ulcer and inflammation of right lower extremityBillable
- I87.032Postthrombotic syndrome with ulcer and inflammation of left lower extremityBillable
- I87.033Postthrombotic syndrome with ulcer and inflammation of bilateral lower extremityBillable
- I87.039Postthrombotic syndrome with ulcer and inflammation of unspecified lower extremityBillable
- I87.09Postthrombotic syndrome with other complications
- I87.091Postthrombotic syndrome with other complications of right lower extremityBillable
- I87.092Postthrombotic syndrome with other complications of left lower extremityBillable
- I87.093Postthrombotic syndrome with other complications of bilateral lower extremityBillable
- I87.099Postthrombotic syndrome with other complications of unspecified lower extremityBillable
Coding notes
- Chronic venous hypertension due to deep vein thrombosis
- Postphlebitic syndrome
- chronic venous hypertension without deep vein thrombosis (I87.3-)
Notes that apply from higher levels
Instructions written at a parent level also apply to I87.0.
Broader instructions also apply from Chapter 9: Diseases of the circulatory system.
Codes whose notes reference I87.0
- I87.3Excludes1
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about I87.0
Is I87.0 billable?
- No. I87.0 is a header code. Report one of its more specific subcodes instead.