Z00-Z99
Medium Complexity
Persons encountering health services for examinations
Primary Specialty: Endocrinology
Last Updated: 2025-09-09
ICD-10 Codes (200)
190 billable0 category headers
Z01Z01.0Billable
Z01.00Billable
Z01.01Billable
Z01.02Billable
Z01.020Billable
Z01.021Billable
Z01.1Billable
Z01.10Billable
Z01.11Billable
Z01.110Billable
Z01.118Billable
Z01.12Billable
Z01.2Billable
Z01.20Billable
Z01.21Billable
Z01.3Billable
Z01.30Billable
Z01.31Billable
Z01.4Billable
Z01.41Billable
Z01.411Billable
Z01.419Billable
Z01.42Billable
Z01.8Billable
Z01.81Billable
Z01.810Billable
Z01.811Billable
Z01.812Billable
Z01.818Billable
Z01.82Billable
Z01.83Billable
Z01.84Billable
Z01.89Billable
Z02Z02.0Billable
Z02.1Billable
Z02.2Billable
Z02.3Billable
Z02.4Billable
Z02.5Billable
Z02.6Billable
Z02.7Billable
Z02.71Billable
Z02.79Billable
Z02.8Billable
Z02.81Billable
Z02.82Billable
Z02.83Billable
Z02.84Billable
Z02.89Billable
Z02.9Billable
Z03Z03.6Billable
Z03.7Billable
Z03.71Billable
Z03.72Billable
Z03.73Billable
Z03.74Billable
Z03.75Billable
Z03.79Billable
Z03.8Billable
Z03.81Billable
Z03.810Billable
Z03.818Billable
Z03.82Billable
Z03.821Billable
Z03.822Billable
Z03.823Billable
Z03.83Billable
Z03.89Billable
Z04Z04.1Billable
Z04.2Billable
Z04.3Billable
Z04.4Billable
Z04.41Billable
Z04.42Billable
Z04.6Billable
Z04.7Billable
Z04.71Billable
Z04.72Billable
Z04.8Billable
Z04.81Billable
Z04.82Billable
Z04.89Billable
Z04.9Billable
Z05Z05.0Billable
Z05.1Billable
Z05.2Billable
Z05.3Billable
Z05.4Billable
Z05.41Billable
Z05.42Billable
Z05.43Billable
Z05.5Billable
Z05.6Billable
Z05.7Billable
Z05.71Billable
Z05.72Billable
Z05.73Billable
Z05.8Billable
Z05.81Billable
Z05.89Billable
Z05.9Billable
Z08Billable
Z09Billable
Z11Z11.0Billable
Z11.1Billable
Z11.2Billable
Z11.3Billable
Z11.4Billable
Z11.5Billable
Z11.51Billable
Z11.52Billable
Z11.59Billable
Z11.6Billable
Z11.7Billable
Z11.8Billable
Z11.9Billable
Z12Z12.0Billable
Z12.1Billable
Z12.10Billable
Z12.11Billable
Z12.12Billable
Z12.13Billable
Z12.2Billable
Z12.3Billable
Z12.31Billable
Z12.39Billable
Z12.4Billable
Z12.5Billable
Z12.6Billable
Z12.7Billable
Z12.71Billable
Z12.72Billable
Z12.73Billable
Z12.79Billable
Z12.8Billable
Z12.81Billable
Z12.82Billable
Z12.83Billable
Z12.89Billable
Z12.9Billable
Z13Z13.0Billable
Z13.1Billable
Z13.2Billable
Z13.21Billable
Z13.22Billable
Z13.220Billable
Z13.228Billable
Z13.29Billable
Z13.3Billable
Z13.30Billable
Z13.31Billable
Z13.32Billable
Z13.39Billable
Z13.4Billable
Z13.40Billable
Z13.41Billable
Z13.42Billable
Z13.49Billable
Z13.5Billable
Z13.6Billable
Z13.7Billable
Z13.71Billable
Z13.79Billable
Z13.8Billable
Z13.81Billable
Z13.810Billable
Z13.811Billable
Z13.818Billable
Z13.82Billable
Z13.820Billable
Z13.828Billable
Z13.83Billable
Z13.84Billable
Z13.85Billable
Z13.850Billable
Z13.858Billable
Z13.88Billable
Z13.89Billable
Z13.9Billable
Z14Z14.0Billable
Z14.01Billable
Z14.02Billable
Z14.1Billable
Z14.8Billable
Z15Z15.0Billable
Z15.01Billable
Z15.02Billable
Z15.03Billable
Z15.04Billable
Z15.09Billable
Updates & Changes
FY 2026 Updates
Current Year
Deleted Codes
No codes deleted in this range for FY 2026
No significant changes for FY 2026
This range maintains stability with current coding practices
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for Z00-Z99 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
high priority
The ICD-10 code range E08-E13 pertains to Diabetes Mellitus, a group of metabolic disorders characterized by high blood sugar levels over a prolonged period. This range includes codes for all types of diabetes, such as Type 1, Type 2, gestational, and drug-induced diabetes. It also covers various complications and manifestations associated with diabetes, like diabetic retinopathy, nephropathy, neuropathy, and cardiovascular diseases.
Key Usage Points:
- •Always specify the type of diabetes (Type 1, Type 2, gestational, etc.)
- •Document any complications or manifestations associated with diabetes
- •Distinguish between controlled and uncontrolled diabetes
- •Use combination codes when coding for diabetes with associated complications
- •Always verify the patient's control status of diabetes
Coding Guidelines
When to Use:
- ✓When a patient has been diagnosed with any type of diabetes
- ✓When a patient with diabetes presents with complications
- ✓When a patient's diabetes is poorly controlled
- ✓When a patient with diabetes is pregnant
- ✓When a patient's diabetes is induced by drugs or chemicals
When NOT to Use:
- ✗When a patient has pre-diabetes or impaired glucose tolerance
- ✗When a patient has secondary diabetes due to another condition
- ✗When a patient has neonatal diabetes
- ✗When a patient has transient diabetes
Code Exclusions
Always verify the patient's medical record to ensure the correct coding of excluded conditions.
Documentation Requirements
Proper documentation for diabetes coding requires specific information about the type of diabetes, the control status, and any associated complications or manifestations.
Clinical Information:
- •Type of diabetes
- •Control status of diabetes
- •Presence of any complications
- •Cause of diabetes (if drug or chemical induced)
- •Effect of diabetes on pregnancy (if applicable)
Supporting Evidence:
- •Laboratory test results
- •Medication records
- •Physician's clinical notes
- •Hospital admission and discharge summaries
Good Documentation Example:
Patient diagnosed with Type 2 Diabetes, uncontrolled, with moderate diabetic retinopathy.
Poor Documentation Example:
Patient has diabetes.
Common Documentation Errors:
- âš Not specifying the type of diabetes
- âš Failing to document the control status
- âš Not coding for associated complications
- âš Incorrectly coding gestational diabetes as Type 2 diabetes
Range Statistics
11
Total Codes
190
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:21
Coding Complexity
Medium
Complexity Rating
Coding for diabetes is of medium complexity due to the need to accurately identify the type of diabetes, control status, and any associated complications. Additionally, special considerations are needed for gestational and drug-induced diabetes.
Key Factors:
- â–¸Determining the type of diabetes
- â–¸Identifying the control status
- â–¸Coding for associated complications
- â–¸Distinguishing between gestational diabetes and pre-existing diabetes in pregnancy
- â–¸Coding for drug-induced diabetes
Specialty Focus
Endocrinologists, primary care physicians, and obstetricians are among the specialties that frequently use the E08-E13 range.
Primary Specialties:
Endocrinology
40%
Primary Care
35%
Obstetrics
25%
Clinical Scenarios:
- • A patient with Type 1 diabetes presenting with diabetic ketoacidosis
- • A patient with Type 2 diabetes and peripheral neuropathy
- • A pregnant patient diagnosed with gestational diabetes
- • A patient with drug-induced diabetes due to steroid therapy
- • A patient with uncontrolled diabetes presenting with hyperglycemic hyperosmolar state
Resources & References
There are several resources available for coding diabetes, including official ICD-10 guidelines, clinical references, and educational materials.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- American Diabetes Association Clinical Practice Recommendations
- World Health Organization ICD-10 coding guidelines
Clinical References:
- American Diabetes Association Standards of Medical Care in Diabetes
- Endocrine Society Clinical Practice Guidelines
Educational Materials:
- American Academy of Professional Coders (AAPC) ICD-10 training
- American Health Information Management Association (AHIMA) coding resources
Frequently Asked Questions
How do I code for uncontrolled diabetes?
Uncontrolled diabetes should be coded using the appropriate code from the E08-E13 range, along with a secondary code to indicate the type of hyperglycemia if present (E11.65 for Type 2 diabetes with hyperglycemia).