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ICD10BillableValid for clinical use

ICD-10 Code E11.8: Type 2 diabetes mellitus with unspecified complications

E11.8 is a billable ICD-10 diagnosis code used to classify Type 2 diabetes mellitus with unspecified complications in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).

When is it used?

  • May be used when a clinician documents type 2 diabetes mellitus with unspecified complications in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E08-E13Diabetes mellitus
category
E11Type 2 diabetes mellitus
currentE11

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

EndocrinologistGeneral Physician

Related tests

Hemoglobin A1c
Commonly used to review longer-term glycemic control in diabetes care.
Fasting blood glucose
May help assess fasting glucose levels in diabetes evaluation and follow-up.
Urine albumin creatinine ratio
Often reviewed when screening for diabetic kidney involvement.

Related procedures

Diabetic retinal exam
Commonly part of diabetes complication screening and follow-up pathways.
Diabetic foot examination
Often used in routine diabetes care to review neuropathy and ulcer risk.
Medical nutrition therapy
May appear in care pathways for diabetes education and ongoing management.

Coverage-related procedures and services

CPT 0349Uhigh
DRUG METABOLISM OR PROCESSING (MULTIPLE CONDITIONS), WHOLE BLOOD OR BUCCAL SPECIMEN, DNA ANALYSIS, 27 GENE REPORT, WITH VARIANT ANALYSIS, INCLUDING REPORTED PHENOTYPES AND IMPACTED GENE-DRUG INTERACTIONS
Source: CMS coverage guidance
CPT 81328high
SLCO1B1 (SOLUTE CARRIER ORGANIC ANION TRANSPORTER FAMILY, MEMBER 1B1) (EG, ADVERSE DRUG REACTION), GENE ANALYSIS, COMMON VARIANT(S) (EG, *5)
Source: CMS coverage guidance
CPT 11720high
DEBRIDEMENT OF NAIL(S) BY ANY METHOD(S); 1 TO 5
Source: CMS coverage guidance
CPT 11721high
DEBRIDEMENT OF NAIL(S) BY ANY METHOD(S); 6 OR MORE
Source: CMS coverage guidance
CPT 93350high
ECHOCARDIOGRAPHY, TRANSTHORACIC, REAL-TIME WITH IMAGE DOCUMENTATION (2D), INCLUDES M-MODE RECORDING, WHEN PERFORMED, DURING REST AND CARDIOVASCULAR STRESS TEST USING TREADMILL, BICYCLE EXERCISE AND/OR PHARMACOLOGICALLY INDUCED STRESS, WITH INTERPRETATION AND REPORT;
Source: CMS coverage guidance
CPT 93351high
ECHOCARDIOGRAPHY, TRANSTHORACIC, REAL-TIME WITH IMAGE DOCUMENTATION (2D), INCLUDES M-MODE RECORDING, WHEN PERFORMED, DURING REST AND CARDIOVASCULAR STRESS TEST USING TREADMILL, BICYCLE EXERCISE AND/OR PHARMACOLOGICALLY INDUCED STRESS, WITH INTERPRETATION AND REPORT; INCLUDING PERFORMANCE OF CONTINUOUS ELECTROCARDIOGRAPHIC MONITORING, WITH SUPERVISION BY A PHYSICIAN OR OTHER QUALIFIED HEALTH CARE PROFESSIONAL
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
E11.8

Common synonyms

Type 2 diabetes mellitus with unspecified complicationsType 2 diabetes mellitus with complications

Frequently asked questions

Code details

CodeE11.8
SystemICD10
Display nameType 2 diabetes mellitus with unspecified complications
ChapterEndocrine, nutritional and metabolic diseases (E00-E89)
BlockDiabetes mellitus

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Diabetes, diabetic(mellitus) (sugar)Diabetes, diabetic(mellitus) (sugar)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code E11.8 for Type 2 diabetes mellitus with unspecified complications | HealthAssure