2027 ICD-10-CM Diagnosis Code I87.333Chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity
ICD-10-CM Codes›I00–I99›I80-I89›I87
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Risk Adjusts — HCC 383
- Chronic Condition
I87.333 is a billable ICD-10-CM diagnosis code for chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 299 through 301. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 58 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postthrombotic syndrome and venous insufficiency/hypertension.
For Medicare Advantage risk adjustment, I87.333 maps to CMS-HCC Category 383 (Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle) under the V28 model, adding a risk factor of about 0.646 for a community, non-dual, aged beneficiary in payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
I87.333 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2027.
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to I87.333: its own notes plus those printed at I87.33, I87.3, and Chapter 9. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- 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.-)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name I87.333, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming I87.333: they are not reported together with it, unless the two conditions are unrelated.
Code First 1
These codes say to code first a condition named in the note, and I87.333 is one of the conditions named.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
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Read the full article at MedlinePlus
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Convert I87.333 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About I87.333Overview
Is I87.333 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does I87.333 group to?
When chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity is the principal diagnosis on an inpatient stay, it groups to MS-DRG 301, 300, 299, with relative weights from 0.7132 to 1.5840 depending on complications. Higher weights mean higher Medicare reimbursement.
Is I87.333 a CC or MCC?
CMS lists I87.333 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 58 closely related codes in its exclusion list.
Can I87.333 be reported with a code from I87.0?
Not as a rule. The Excludes1 note at I87.3, which applies to I87.333, lists "chronic venous hypertension due to deep vein thrombosis (I87.0-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
Does I87.333 need an additional code?
When the condition applies, yes. The Use Additional Code note at I87.33, which applies to I87.333, reads: code to specify site and severity of ulcer (L97.-). The additional code is reported after I87.333.
What HCC is I87.333?
I87.333 (chronic venous hypertension (idiopathic) with ulcer and inflammation of bilateral lower extremity) maps to CMS-HCC Category 383 (Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle), commonly written as HCC 383, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It mapped to HCC 107 under the retired V24 model. It also maps in the PACE (CMS-HCC V22), ESRD (V21), and ESRD (V24) models. It does not map to any RxHCC in the Part D prescription drug model.
Does I87.333 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, I87.333 adds a risk adjustment factor of about 0.646 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.343 to 0.890 depending on the payment segment). A more severe related category (HCC 263, HCC 379, HCC 380, HCC 381, and HCC 382) supersedes it when both are reported. See the full factor table on the HCC 383 category page.
