2027 ICD-10-CM Diagnosis Code B55.1Cutaneous leishmaniasis
ICD-10-CM Codes›A00–B99›B50-B64›B55
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
B55.1 is a billable ICD-10-CM diagnosis code for cutaneous leishmaniasis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 606 through 607. 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 69 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Parasitic, other specified and unspecified infections.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute necrotizing cutaneous leishmaniasis
- American cutaneous/mucocutaneous Leishmaniasis
- American mucocutaneous leishmaniasis
- Asian desert cutaneous leishmaniasis
- Classical zoonotic cutaneous leishmaniasis
- Cutaneous leishmaniasis
- Diffuse cutaneous leishmaniasis
- Diffuse cutaneous leishmaniasis caused by Leishmania aethiopica
- Diffuse cutaneous New World leishmaniasis
- Disseminated anergic leishmaniasis
- Dry form of cutaneous leishmaniasis
- Indian anthroponotic cutaneous leishmaniasis
- Indian zoonotic cutaneous leishmaniasis
- Infection by Leishmania aethiopica
- Infection by Leishmania braziliensis
- Infection by Leishmania mexicana
- Infection by Leishmania tropica minor
- Late cutaneous leishmaniasis
- Leishmania brasiliensis complex cutaneous leishmaniasis
- Leishmania mexicana localized cutaneous leishmaniasis
- Leishmania recidiva
- Localized cutaneous leishmaniasis
- Localized cutaneous leishmaniasis co-occurrent with nodular lymphangitis
- Localized infection of skin AND/OR subcutaneous tissue
- Lupoid leishmaniasis
- Middle Eastern zoonotic cutaneous leishmaniasis
- Post-kala-azar dermal leishmaniasis
- Recurrent cutaneous leishmaniasis
- Recurrent infection caused by Protozoa
- Sahelian zoonotic cutaneous leishmaniasis
- Ulcerating cutaneous leishmaniasis
- Ulcerating cutaneous leishmaniasis of lower extremity
- Wet form of cutaneous leishmaniasis
- Zoonotic form of cutaneous leishmaniasis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to B55.1: its own notes plus those printed at block B50-B64 and Chapter 1. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- diseases generally recognized as communicable or transmissible
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.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify resistance to antimicrobial drugs (Z16.-)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name B55.1, its category, or a range that includes it.
Applicable To 1
These notes mention B55.1.
- O98.6 Protozoal diseases complicating pregnancy, childbirth and the puerperium
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Aleppo boil B55.1
Chiclero ulcer or sore B55.1
Infection, infected, infective (opportunistic) B99.9
Leishmania See Also: Leishmaniasis;
aethiopica B55.1
major B55.1
mexicana B55.1
tropica B55.1
American (mucocutaneous) B55.2
cutaneous B55.1
Asian Desert B55.1
cutaneous (any type) B55.1
eyelid B55.1
old world B55.1
tegumentaria diffusa B55.1
Uta B55.1
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Leishmaniasis, Cutaneous
an endemic disease that is characterized by the development of single or multiple localized lesions on exposed areas of skin that typically ulcerate. the disease has been divided into old and new world forms. old world leishmaniasis is separated into three distinct types according to epidemiology and clinical manifestations and is caused by species of the l. tropica and l. aethiopica complexes as well as by species of the l. major genus. new world leishmaniasis, also called american leishmaniasis, occurs in south and central america and is caused by species of the l. mexicana or l. braziliensis complexes.
Patient EducationClinical
Leishmaniasis
Leishmaniasis is a parasitic disease spread by the bite of infected sand flies. There are several different forms of leishmaniasis. The most common are cutaneous and visceral. The cutaneous type causes skin sores. The visceral type affects internal organs such as the spleen, liver, and bone marrow.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert B55.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B55.1Overview
What is the ICD-10 code for cutaneous leishmaniasis?
The ICD-10-CM code for cutaneous leishmaniasis is B55.1 (sometimes written as B551). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is B55.1 (Leishmaniasis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report cutaneous leishmaniasis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does B55.1 group to?
When cutaneous leishmaniasis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 607, 606, with relative weights from 0.8772 to 1.5721 depending on complications. Higher weights mean higher Medicare reimbursement.
Is B55.1 a CC or MCC?
CMS lists B55.1 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 69 closely related codes in its exclusion list.
Can B55.1 be reported with a code from A06?
Not as a rule. The Excludes1 note at block B50-B64, which applies to B55.1, lists "amebiasis (A06.-)". 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).
