2026 ICD-10-CM Diagnosis Code E11.A
Type 2 diabetes mellitus without complications in remission
- ICD-10-CM Code:
- E11.A
- ICD-10 Code for:
- Type 2 diabetes mellitus without complications in remission
- Is Billable?
- Yes - Valid for Submission
- Code Navigator:
E11.A is a billable diagnosis code used to specify a medical diagnosis of type 2 diabetes mellitus without complications in remission. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2025 through September 30, 2026.
This code is not usually sufficient justification for admission to an acute care hospital when used as a principal diagnosis.
Coding Guidelines
The diabetes mellitus codes are combination codes that include the type of diabetes mellitus, the body system affected, and the complications affecting that body system. As many codes within a particular category as are necessary to describe all of the complications of the disease may be used. They should be sequenced based on the reason for a particular encounter. Assign as many codes from categories E08 - E13 as needed to identify all of the associated conditions that the patient has.
If the type of diabetes mellitus is not documented in the medical record the default is E11.-, Type 2 diabetes mellitus.
New 2026 ICD-10-CM Code
E11.A is new to ICD-10-CM code set for the FY 2026, effective October 1, 2025. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2025. This is a new and revised code for the FY 2026 (October 1, 2025 - September 30, 2026).
Tabular List of Diseases and Injuries
The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.
Type 1 Excludes
Type 1 ExcludesA type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
Index of External Cause of Injuries
References found for this diagnosis code in the External Cause of Injuries Index:
- Diabetes, diabetic(mellitus) (sugar)
- type 2
- without complications in remission
- Diabetes, diabetic(mellitus) (sugar)
- without complications in remission
Code Edits
The Medicare Code Editor (MCE) detects errors and inconsistencies in ICD-10-CM diagnosis coding that can affect Medicare claim validity. These Medicare code edits help medical coders and billing professionals determine when a diagnosis code is not appropriate as a principal diagnosis, does not meet coverage criteria. Use this list to verify whether a code is valid for Medicare billing and to avoid claim rejections or denials due to diagnosis coding issues.
Questionable admission codes
Some diagnoses are not usually sufficient justification for admission to an acute care hospital. For example, if a patient is given code R030 for elevated blood pressure reading, without diagnosis of hypertension, then the patient would have a questionable admission, since elevated blood pressure reading is not normally sufficient justification for admission to a hospital. The following list contains diagnosis codes identified as questionable admission when used.
Replacement Code
E11A replaces the following previously assigned ICD-10-CM code(s):
- E11.9 - Type 2 diabetes mellitus without complications
Code History
- FY 2026 - Code Added, effective from 10/1/2025 through 9/30/2026
