ICD-10-CM 2027 diagnosis code
I83.012Varicose veins of right lower extremity with ulcer of calf
I83.012 is a valid, billable ICD-10-CM code for varicose veins of right lower extremity with ulcer of calf. 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 I83.012
I83.012 is the ICD-10-CM diagnosis code for varicose veins of right lower extremity with ulcer of calf. It belongs to category I83 (varicose veins of lower extremities), 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 I83.01 (varicose veins of right lower extremity with ulcer), I83.012 is specifically for varicose veins of right lower extremity with ulcer of calf. Related codes cover of thigh (I83.011), of ankle (I83.013), of heel and midfoot (I83.014), other part of foot (I83.015), other part of lower leg (I83.018) and of unspecified site (I83.019).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
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.
The Medicare Code Editor expects this diagnosis only for patients age 15 through 124.
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 454.0 (varicose veins of lower extremities with ulcer).
Notes that apply from higher levels
Instructions written at a parent level also apply to I83.012.
› From I83.0 Varicose veins of lower extremities with ulcer
- code to identify severity of ulcer (L97.-)
Broader instructions also apply from Chapter 9: Diseases of the circulatory system.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to I83.012.
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 →- 454.0Varicose veins of lower extremities with ulcerapproximate
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 I83.012
Is I83.012 billable?
- Yes. I83.012 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I83.012 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I83.012 as a principal diagnosis.
Is I83.012 a CC or MCC?
- No. I83.012 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does I83.012 group to?
- I83.012 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 I83.012?
- The CMS General Equivalence Mappings map I83.012 to ICD-9-CM 454.0.