ICD-10 I87.1
Billable / Specific CCCompression of vein
About ICD-10-CM I87.1
ICD-10-CM code I87.1 represents Compression of vein. This is a billable/specific code in the Circulatory System chapter (block I87). The 2026 edition of ICD-10-CM I87.1 became effective on October 1, 2025.
Coding Tips for I87.1
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
I87.1 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under I87.1. Per CMS ICD-10-CM Tabular 2026.
- Stricture of vein
- Vena cava syndrome (inferior) (superior)
Type 2 Excludes
Not included here, the excluded code is not part of I87.1, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- compression of pulmonary vein (I28.8)
Inpatient DRG Impact, CC
code Compression of vein. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for I87.1
Local Coverage Determinations (LCDs) from CMS MACs that list I87.1 as a covered diagnosis.
Showing top 10 of 240 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I87.1.
4 Aetna
5 Medicare
CPT Codes Commonly Billed with I87.1
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
Convert I87.1 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| I87.1 | 4592 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To I87.1
Other codes in section I80-I89 (Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified).
ICD-10 I87.1, Billing FAQ
Is ICD-10 code I87.1 billable? +
Yes, I87.1 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to I87.1? +
ICD-10 I87.1 includes: Stricture of vein; Vena cava syndrome (inferior) (superior).
What codes are Type 2 Excludes for I87.1? +
Type 2 Excludes (may be coded together when both conditions exist): compression of pulmonary vein (I28.8)
Is I87.1 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What CPT codes are commonly billed with I87.1? +
Procedures frequently paired with I87.1 include: 37238, 37239, 37183, 37182.
What ICD-9 codes does I87.1 map to? +
Per CMS GEMs, I87.1 maps to ICD-9 codes: 4592. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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