C00-C14
Medium Complexity
Malignant neoplasms of lip, oral cavity and pharynx
Primary Specialty: Endocrinology
Last Updated: 2025-09-09
ICD-10 Codes (68)
68 billable0 category headers
C01Billable
C02Billable
C02.0Billable
C02.1Billable
C02.2Billable
C02.3Billable
C02.4Billable
C02.8Billable
C02.9Billable
C03Billable
C03.0Billable
C03.1Billable
C03.9Billable
C04Billable
C04.0Billable
C04.1Billable
C04.8Billable
C04.9Billable
C05Billable
C05.0Billable
C05.1Billable
C05.2Billable
C05.8Billable
C05.9Billable
C06Billable
C06.0Billable
C06.1Billable
C06.2Billable
C06.8Billable
C06.80Billable
C06.89Billable
C06.9Billable
C07Billable
C08Billable
C08.0Billable
C08.1Billable
C08.9Billable
C09Billable
C09.0Billable
C09.1Billable
C09.8Billable
C09.9Billable
C10Billable
C10.0Billable
C10.1Billable
C10.2Billable
C10.3Billable
C10.4Billable
C10.8Billable
C10.9Billable
C11Billable
C11.0Billable
C11.1Billable
C11.2Billable
C11.3Billable
C11.8Billable
C11.9Billable
C12Billable
C13Billable
C13.0Billable
C13.1Billable
C13.2Billable
C13.8Billable
C13.9Billable
C14Billable
C14.0Billable
C14.2Billable
C14.8Billable
Updates & Changes
FY 2026 Updates
Current Year
New Codes (2)
C02.9
Malignant neoplasm of tongue, unspecified, HPV-positive
C10.8
Malignant neoplasm of overlapping sites of oropharynx, HPV-positive
Revised Codes (2)
C01
Malignant neoplasm of base of tongue - updated to include HPV status when known
C09.9
Malignant neoplasm of tonsil, unspecified - enhanced molecular classification
Deleted Codes
No codes deleted in this range for FY 2026
Historical Changes
- •FY 2025: Added HPV-positive classification for head and neck cancers
- •FY 2024: Enhanced staging codes for oral cavity malignancies
- •FY 2023: Updated terminology for salivary gland tumors
Upcoming Changes
- •Proposed molecular subtyping codes for head and neck cancers
- •Under review: Enhanced precision medicine coding for oral cancers
Implementation Guidance
- •Review all FY 2026 updates for C00-C14 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 is dedicated to Diabetes Mellitus, a group of metabolic disorders characterized by a high blood sugar level over a prolonged period. This range includes codes for all types of diabetes, including Type 1, Type 2, gestational, and drug-induced diabetes. It also covers various complications and manifestations associated with diabetes, such as diabetic retinopathy, nephropathy, neuropathy, and cardiovascular disease.
Key Usage Points:
- •Always specify the type of diabetes (Type 1, Type 2, gestational, etc.) in the documentation.
- •Include details about any complications or manifestations, such as retinopathy or nephropathy.
- •Distinguish between controlled and uncontrolled diabetes.
- •Use combination codes for diabetes with associated complications.
- •Always update the patient's record to reflect the current status of the disease.
Coding Guidelines
When to Use:
- ✓When a patient is diagnosed with any type of diabetes.
- ✓When a patient with diabetes presents with a complication or manifestation.
- ✓When a patient's diabetes is uncontrolled.
- ✓When a patient's diabetes is controlled with medication.
- ✓When a patient has gestational diabetes.
When NOT to Use:
- ✗When a patient has prediabetes or impaired glucose tolerance.
- ✗When a patient has secondary diabetes due to another condition.
- ✗When a patient has transient diabetes.
- ✗When a patient has neonatal diabetes.
- ✗When a patient has stress-induced hyperglycemia.
Code Exclusions
Always verify exclusions by cross-referencing the patient's clinical information with the ICD-10 coding guidelines.
Documentation Requirements
Documentation for diabetes mellitus should be comprehensive, including the type of diabetes, the control status (controlled or uncontrolled), and any associated complications or manifestations. The patient's treatment regimen and response to treatment should also be documented.
Clinical Information:
- •Type of diabetes
- •Control status
- •Associated complications or manifestations
- •Treatment regimen
- •Response to treatment
Supporting Evidence:
- •Laboratory test results
- •Medication records
- •Clinical notes
- •Specialist reports
Good Documentation Example:
Patient has Type 2 diabetes, controlled with metformin. No complications noted.
Poor Documentation Example:
Patient has diabetes.
Common Documentation Errors:
- âš Not specifying the type of diabetes
- âš Not indicating the control status
- âš Not documenting associated complications
- âš Not updating the patient's record regularly
Range Statistics
15
Total Codes
68
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:2
Coding Complexity
Medium
Complexity Rating
The complexity of coding for diabetes mellitus lies in the need to accurately capture the type of diabetes, the control status, and any associated complications. This requires a thorough understanding of the disease and its manifestations, as well as careful review of the patient's clinical information.
Key Factors:
- â–¸Determining the type of diabetes
- â–¸Identifying and coding for associated complications
- â–¸Distinguishing between controlled and uncontrolled diabetes
- â–¸Understanding the use of combination codes
- â–¸Keeping up with changes in the patient's condition and treatment
Specialty Focus
Endocrinologists, primary care physicians, and obstetricians are among the specialties that frequently use the E08-E13 code range. These codes are also used in ophthalmology, nephrology, and cardiology due to the common complications of diabetes affecting the eyes, kidneys, and heart.
Primary Specialties:
Endocrinology
40%
Primary Care
30%
Obstetrics
10%
Clinical Scenarios:
- • A patient with Type 1 diabetes presenting with diabetic retinopathy.
- • A patient with Type 2 diabetes controlled with medication.
- • A pregnant patient diagnosed with gestational diabetes.
- • A patient with uncontrolled diabetes presenting with diabetic neuropathy.
- • A patient with diabetes and associated cardiovascular disease.
Resources & References
Numerous resources are available to assist with coding for diabetes mellitus. These include the official ICD-10 coding guidelines, clinical reference materials, and educational resources.
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 Health Information Management Association (AHIMA) ICD-10 training materials
- American Academy of Professional Coders (AAPC) ICD-10 coding resources
Frequently Asked Questions
How do I code for diabetes with multiple complications?
Use a combination code that includes the type of diabetes and the complications. If a combination code is not available, use multiple codes to capture all the complications.
What is the difference between controlled and uncontrolled diabetes?
Controlled diabetes is when blood sugar levels are within target ranges with treatment. Uncontrolled diabetes is when blood sugar levels remain high despite treatment.