ICD-10-CM 2027 diagnosis code
I87.1Compression of vein
I87.1 is a valid, billable ICD-10-CM code for compression of vein. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
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 I87.1
I87.1 is the ICD-10-CM diagnosis code for compression of vein. 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 billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within I87 (other disorders of veins), I87.1 is specifically for compression of vein. Related codes cover Postthrombotic syndrome (I87.0), 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).
The conditions in its Excludes2 note aren't part of I87.1, but may be coded alongside it if the patient has both: compression of pulmonary vein (I28.8).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 299 (Peripheral Vascular Disorders with MCC, relative weight 1.5842), DRG 300 (Peripheral Vascular Disorders with CC, relative weight 1.0464) and DRG 301 (Peripheral Vascular Disorders without CC/MCC, relative weight 0.7133), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as 459.2 (compression of vein).
Coding notes
- Stricture of vein
- Vena cava syndrome (inferior) (superior)
- compression of pulmonary vein (I28.8)
Notes that apply from higher levels
Instructions written at a parent level also apply to I87.1.
Broader instructions also apply from Chapter 9: Diseases of the circulatory system.
Alphabetic index entries
17 entriesTerms in the official ICD-10-CM index that lead to I87.1.
- Compression › vein
- Compression › vena cava (inferior) (superior)
- Edema, edematous (infectious) (pitting) (toxic) › legs › due to venous obstruction
- Edema, edematous (infectious) (pitting) (toxic) › localized › due to venous obstruction
- Kink, kinking › vein (s) › caval
- Kink, kinking › vein (s) › peripheral
- Obstruction, obstructed, obstructive › caval veins (inferior) (superior)
- Obstruction, obstructed, obstructive › vein, venous
- Obstruction, obstructed, obstructive › vein, venous › caval (inferior) (superior)
- Obstruction, obstructed, obstructive › vena cava (inferior) (superior)
- Stenosis, stenotic (cicatricial) › vena cava (inferior) (superior)
- Stricture › vein
- Stricture › vena cava (inferior) (superior) NEC
- Syndrome › inferior vena cava
- Syndrome › superior › vena cava
- Syndrome › thoracic outlet (compression) › venous
- Syndrome › vena cava (inferior) (superior) (obstruction)
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 05 · Diseases and Disorders of the Circulatory System
ICD-9-CM equivalent
Converter →- 459.2Compression of veinexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
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 I87.1
Is I87.1 billable?
- Yes. I87.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I87.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I87.1 as a principal diagnosis.
Is I87.1 a CC or MCC?
- I87.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does I87.1 group to?
- I87.1 is used in the MS-DRG v44.0 logic for MS-DRG 299 (Peripheral Vascular Disorders with MCC), MS-DRG 300 (Peripheral Vascular Disorders with CC) and MS-DRG 301 (Peripheral Vascular Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for I87.1?
- The CMS General Equivalence Mappings map I87.1 to ICD-9-CM 459.2.