2026 ICD-10-CM Diagnosis Code L03.125Acute lymphangitis of right lower limb
ICD-10-CM Codes›L00–L99›L00-L08›L03
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
L03.125 is a billable ICD-10-CM diagnosis code for acute lymphangitis of right lower limb. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 573 through 575, 602 through 603, 791, 793. 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 52 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Skin and subcutaneous tissue infections.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute lymphangitis of ankle
- Acute lymphangitis of foot
- Acute lymphangitis of hip
- Acute lymphangitis of knee
- Acute lymphangitis of right ankle
- Acute lymphangitis of right foot
- Acute lymphangitis of right hip
- Acute lymphangitis of right knee
- Acute lymphangitis of right lower limb
- Acute lymphangitis of right thigh
- Acute lymphangitis of thigh
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Bacterial Infections
Bacteria are tiny organisms (living things) that have only one cell. Under a microscope, they look like balls, rods, or spirals. They can be found almost everywhere on Earth. There are lots of bacteria in and on your body. In fact, your body has about 10 times more bacteria cells than human cells.
The full article covers:
- What are bacteria?
- How do bacterial infections spread?
- What are the treatments for bacterial infections?
- Can bacterial infections be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert L03.125 to ICD-9-CMHistory
Code HistoryHistory
Questions About L03.125Overview
What is the ICD-10 code for acute lymphangitis of right lower limb?
The ICD-10-CM code for acute lymphangitis of right lower limb is L03.125 (sometimes written as L03125). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is L03.125 (Acute lymphangitis of other parts of limb) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report acute lymphangitis of right lower limb on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does L03.125 group to?
When acute lymphangitis of right lower limb is the principal diagnosis on an inpatient stay, it groups to MS-DRG 573, 574, 575, 602, 603, 791, 793, with relative weights from 0.8709 to 6.5514 depending on complications. Higher weights mean higher Medicare reimbursement.
Is L03.125 a CC or MCC?
CMS lists L03.125 as a CC (complication or comorbidity) for FY 2026. 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 52 closely related codes in its exclusion list.
What is the ICD-9 equivalent of L03.125?
Under the General Equivalence Mappings, acute lymphangitis of right lower limb converts to ICD-9-CM 682.6 (cellulitis of leg) and 682.7 (cellulitis of foot). The mapping is approximate, so confirm the match fits the documentation.
