P45-P49
Medium Complexity

Infections specific to the perinatal period

Primary Specialty: Endocrinology
Last Updated: 2025-09-09

ICD-10 Codes (0)

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Updates & Changes

FY 2026 Updates

Current Year

New Codes (1)

P04.49
Newborn affected by maternal use of other drugs of addiction

Revised Codes (1)

P04.17
Newborn affected by maternal use of cocaine - updated neonatal abstinence syndrome correlation

Deleted Codes

No codes deleted in this range for FY 2026

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 P45-P49 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 chronic condition characterized by high levels of glucose in the blood. This range encompasses all types of diabetes, including Type 1, Type 2, gestational, and drug-induced diabetes. It also includes codes for various complications and manifestations associated with diabetes, such as diabetic neuropathy, retinopathy, nephropathy, and others. The coding within this range is specific, allowing for the accurate representation of the patient's condition, including the type of diabetes, its control status, and any associated complications.

Key Usage Points:

  • Always specify the type of diabetes (Type 1, Type 2, etc.) in the patient's medical record.
  • Use additional codes from E08-E13 to document any complications or manifestations of diabetes.
  • Distinguish between controlled and uncontrolled diabetes when coding.
  • Utilize combination codes to accurately represent diabetes with associated conditions.
  • Remember, the same patient can have different types of diabetes at different times.

Coding Guidelines

When to Use:

  • When a patient has been diagnosed with any type of diabetes.
  • When a patient's diabetes is either controlled or uncontrolled.
  • When a patient with diabetes presents with associated complications or manifestations.
  • When a patient's diabetes is induced by drugs or chemicals.
  • When a patient has gestational diabetes.

When NOT to Use:

  • When a patient has prediabetes or impaired glucose tolerance, use R73.0-.
  • When a patient has neonatal diabetes mellitus, use P70.2.
  • When a patient has secondary diabetes mellitus, use codes from E08-E13.
  • When a patient has diabetes insipidus, use E23.2.

Code Exclusions

Always verify the patient's condition and consult the ICD-10 manual for the most accurate code.

Documentation Requirements

Documentation for diabetes mellitus should be comprehensive, including the type of diabetes, control status, and any associated complications. The documentation should be supported by clinical findings, laboratory results, and treatment plans.

Clinical Information:

  • Type of diabetes
  • Control status of diabetes
  • Presence of any complications
  • Treatment plan
  • Patient's response to treatment

Supporting Evidence:

  • Laboratory results
  • Medical history
  • Physical examination findings
  • Medication records
Good Documentation Example:

Patient diagnosed with Type 2 diabetes, uncontrolled, with diabetic peripheral neuropathy. On metformin and insulin therapy.

Poor Documentation Example:

Diabetes

Common Documentation Errors:

  • Not specifying the type of diabetes
  • Failing to document the control status
  • Not documenting associated complications
  • Incomplete documentation of treatment plan

Range Statistics

5
Total Codes
0
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:16

Coding Complexity

Medium
Complexity Rating

The complexity of coding for diabetes mellitus is considered medium due to the need to accurately identify the type of diabetes, control status, and any associated complications. The use of combination codes also adds to the complexity. However, with a thorough understanding of the guidelines and regular updates, this complexity can be managed effectively.

Key Factors:
  • Determining the type of diabetes
  • Identifying the control status
  • Recognizing and coding for complications
  • Understanding the use of combination codes
  • Keeping up with changes and updates in coding guidelines

Specialty Focus

The E08-E13 range is primarily used by endocrinologists, but also by primary care physicians, ophthalmologists, nephrologists, and others who manage diabetic patients.

Primary Specialties:
Endocrinology
60%
Primary Care
30%
Nephrology
10%
Clinical Scenarios:
  • A patient with Type 1 diabetes presenting with diabetic ketoacidosis.
  • A pregnant woman diagnosed with gestational diabetes.
  • A patient with Type 2 diabetes and diabetic retinopathy.
  • A patient with drug-induced diabetes after steroid therapy.
  • A patient with uncontrolled Type 2 diabetes and peripheral neuropathy.

Resources & References

Several resources are available for coding diabetes mellitus, including the ICD-10 manual, official coding guidelines, clinical references, and educational materials.

Official Guidelines:

  • ICD-10-CM Official Guidelines for Coding and Reporting
  • American Diabetes Association Clinical Practice Guidelines
  • World Health Organization ICD-10 Guidelines

Clinical References:

  • Harrison's Principles of Internal Medicine
  • American Diabetes Association Standards of Medical Care in Diabetes

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 to code for a patient with both Type 1 and Type 2 diabetes?

A patient cannot have both Type 1 and Type 2 diabetes at the same time. If a patient has been diagnosed with both at different times, use the code for the type that is currently present.

How to code for diabetes with multiple complications?

Use multiple codes from the E08-E13 range to represent each complication. Always code the diabetes first, followed by the codes for complications.