2027 ICD-10-CM Diagnosis Code A06.9Amebiasis, unspecified
ICD-10-CM Codes›A00–B99›A00-A09›A06
- Billable — Valid for Submission
- Not Chronic
A06.9 is a billable ICD-10-CM diagnosis code for amebiasis, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 867 through 869. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Intestinal infection; and Parasitic, other specified and unspecified infections.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Abscess caused by Entamoeba histolytica
- Amebic appendicitis
- Amebic balanitis
- Amebic encephalitis
- Amebic infection
- Amebic infection of central nervous system
- Asymptomatic amebic infection
- Disease caused by Endamoebidae
- Disease caused by Hartmannellidae
- Disease caused by Vahlkampfiidae
- Entamoeba histolytica enteritis of intestine
- Extraintestinal infection caused by Entamoeba
- Infection by Endolimax
- Infection by Entamoeba
- Infection by Entamoeba coli
- Infection by Hartmannella
- Infection by Iodamoeba
- Infection by Vahlkampfia
- Infection caused by Entamoeba histolytica
- Infection of intestine caused by Entamoeba histolytica
- Infection of large intestine caused by Entamoeba histolytica
- Symptomatic non-invasive amebic infection
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to A06.9: its own notes plus those printed at A06 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.
- infection due to Entamoeba histolytica
- 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 A06.9, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming A06.9: they are not reported together with it, unless the two conditions are unrelated.
- Block B50-B64 Protozoal diseasesamebiasis (A06.-) names A06.-, which includes this code
Excludes2 2
These codes carry an Excludes2 note naming A06.9: its condition is not part of those codes, and both may be reported when the patient has both.
- Block P35-P39 Infections specific to the perinatal period
- P37 Other congenital infectious and parasitic diseases
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Amebiasis A06.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Amebiasis
infection with any of various amebae. it is an asymptomatic carrier state in most individuals, but diseases ranging from chronic, mild diarrhea to fulminant dysentery may occur.
Patient EducationClinical
Parasitic Diseases
Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact. Some parasitic diseases are easily treated and some are not.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert A06.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About A06.9Overview
What is the ICD-10 code for amebiasis, unspecified?
The ICD-10-CM code for amebiasis, unspecified is A06.9 (sometimes written as A069). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is A06.9 (Amebiasis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report amebiasis, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does A06.9 group to?
When amebiasis, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 869, 868, with relative weights from 0.6784 to 2.1855 depending on complications. Higher weights mean higher Medicare reimbursement.
Can A06.9 be reported with a code from A07?
Not as a rule. The Excludes1 note at A06, which applies to A06.9, lists "other protozoal intestinal diseases (A07.-)". 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).
What is the ICD-9 equivalent of A06.9?
Under the General Equivalence Mappings, amebiasis, unspecified converts to ICD-9-CM 006.9 (amebiasis NOS). The mapping is a direct match.
