G10-G14
Medium Complexity

Systemic atrophies primarily affecting the central nervous system

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

ICD-10 Codes (32)

32 billable
0 category headers
G11
Billable
Hereditary ataxia
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G11.0
Billable
Congenital nonprogressive ataxia
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G11.1
Billable
Early-onset cerebellar ataxia
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G11.10
Billable
Early-onset cerebellar ataxia, unspecified
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G11.11
Billable
Friedreich ataxia
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G11.19
Billable
Other early-onset cerebellar ataxia
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G11.2
Billable
Late-onset cerebellar ataxia
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G11.3
Billable
Cerebellar ataxia with defective DNA repair
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G11.4
Billable
Hereditary spastic paraplegia
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G11.5
Billable
Hypomyelination - hypogonadotropic hypogonadism - hypodontia
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G11.6
Billable
Leukodystrophy with vanishing white matter disease
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G11.8
Billable
Other hereditary ataxias
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G11.9
Billable
Hereditary ataxia, unspecified
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G12
Billable
Spinal muscular atrophy and related syndromes
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G12.0
Billable
Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
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G12.1
Billable
Other inherited spinal muscular atrophy
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G12.2
Billable
Motor neuron disease
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G12.20
Billable
Motor neuron disease, unspecified
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G12.21
Billable
Amyotrophic lateral sclerosis
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G12.22
Billable
Progressive bulbar palsy
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G12.23
Billable
Primary lateral sclerosis
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G12.24
Billable
Familial motor neuron disease
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G12.25
Billable
Progressive spinal muscle atrophy
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G12.29
Billable
Other motor neuron disease
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G12.8
Billable
Other spinal muscular atrophies and related syndromes
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G12.9
Billable
Spinal muscular atrophy, unspecified
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G13
Billable
Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere
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G13.0
Billable
Paraneoplastic neuromyopathy and neuropathy
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G13.1
Billable
Other systemic atrophy primarily affecting central nervous system in neoplastic disease
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G13.2
Billable
Systemic atrophy primarily affecting the central nervous system in myxedema
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G13.8
Billable
Systemic atrophy primarily affecting central nervous system in other diseases classified elsewhere
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G14
Billable
Postpolio syndrome
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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 G10-G14 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. The codes within this range are used to classify various types of diabetes, including Type 1, Type 2, gestational, and drug-induced diabetes. The codes also account for complications and manifestations associated with diabetes, such as retinopathy, nephropathy, and neuropathy.

Key Usage Points:

  • E08 codes are used for diabetes mellitus due to underlying conditions.
  • E09 codes are used for drug or chemical induced diabetes mellitus.
  • E10 and E11 codes are used for Type 1 and Type 2 diabetes respectively.
  • E13 codes are used for other specified diabetes mellitus.
  • Controlled and uncontrolled diabetes are not differentiated in ICD-10.

Coding Guidelines

When to Use:

  • When a patient is diagnosed with Type 1 or Type 2 diabetes.
  • When a patient has gestational diabetes.
  • When a patient has diabetes due to an underlying condition or drug use.
  • When a patient has diabetes with associated complications.

When NOT to Use:

  • When a patient has prediabetes or impaired glucose tolerance.
  • When a patient has secondary diabetes due to pancreatic disease.
  • When a patient has neonatal diabetes mellitus.
  • When a patient has transient diabetes mellitus.

Code Exclusions

Always verify exclusions and use the most specific code available.

Documentation Requirements

Accurate documentation is crucial for coding diabetes mellitus. It should include the type of diabetes, any associated complications, and the patient's control status.

Clinical Information:

  • Type of diabetes
  • Associated complications
  • Control status of diabetes
  • Underlying conditions or drug use causing diabetes

Supporting Evidence:

  • Lab results confirming diagnosis
  • Medical history
  • Medication records
  • Physician's notes
Good Documentation Example:

Patient diagnosed with Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy.

Poor Documentation Example:

Patient has diabetes.

Common Documentation Errors:

  • Not specifying the type of diabetes
  • Omitting associated complications
  • Not documenting control status
  • Not indicating underlying conditions or drug use

Range Statistics

Total Codes
32
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:6

Coding Complexity

Medium
Complexity Rating

The complexity of coding diabetes mellitus lies in the need to accurately identify the type of diabetes, any associated complications, and the patient's control status. Understanding the cause of the diabetes, whether due to an underlying condition or drug use, also adds to the complexity.

Key Factors:
  • Identifying the type of diabetes
  • Identifying and coding associated complications
  • Determining control status
  • Identifying underlying conditions or drug use

Specialty Focus

Endocrinologists, primary care physicians, and obstetricians often use these codes.

Primary Specialties:
Endocrinology
40%
Primary Care
35%
Obstetrics
25%
Clinical Scenarios:
  • Patient with Type 1 diabetes presenting with diabetic ketoacidosis.
  • Patient with Type 2 diabetes and peripheral neuropathy.
  • Pregnant patient diagnosed with gestational diabetes.
  • Patient with diabetes due to steroid use presenting with hyperglycemia.

Resources & References

Several resources provide guidance on coding diabetes mellitus.

Official Guidelines:

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

Clinical References:

  • American Diabetes Association Standards of Medical Care in Diabetes
  • Endocrine Society Clinical Practice Guidelines

Educational Materials:

  • American Health Information Management Association ICD-10 Training
  • American Academy of Professional Coders ICD-10 Training

Frequently Asked Questions

How do I code for diabetes with multiple complications?

Use combination codes to capture multiple complications. If a combination code does not exist, use multiple codes to represent each complication.