ICD10BillableValid for clinical use
ICD-10 Code E08.42: Diabetes mellitus due to underlying condition with diabetic polyneuropathy
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).
šClinical overview
This ICD-10 code is commonly used when documentation describes diabetes or diabetes-related clinical context. The exact code selection depends on the diabetes type, whether complications are documented, and how specific the charting is.
When is it used?
- May be used when a clinician documents diabetes mellitus due to underlying condition with diabetic polyneuropathy 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.
š©ŗClinical context
When commonly used
- Outpatient and inpatient documentation where diabetes is an active diagnosis or part of chronic disease management.
- Risk adjustment, utilization review, and continuity-of-care summaries where diabetes status needs to be carried forward.
Common management context
- Diabetes care often involves primary care, endocrinology, eye screening, kidney-risk monitoring, and foot-care follow-up.
- Medication reconciliation and longitudinal follow-up matter because treatment intensity and complication status can change over time.
- Specialist context already linked on this page includes Endocrinologist, General Physician.
šKey distinctions
Important notes
- ICD-10 diabetes coding usually becomes more specific when the record documents complications such as kidney disease, neuropathy, retinopathy, ulcers, or hypoglycemia.
- If the record identifies the diabetes type or a complication clearly, a more detailed family code may be more appropriate than a broad default code.
Related codes to consider
E08.40Diabetes mellitus due to underlying condition with diabetic neuropathy, unspecified
Related diabetes-family ICD-10 code; documentation often becomes more specific when type or complication detail is available.
E08.41Diabetes mellitus due to underlying condition with diabetic mononeuropathy
Related diabetes-family ICD-10 code; documentation often becomes more specific when type or complication detail is available.
E08.43Diabetes mellitus due to underlying condition with diabetic autonomic (poly)neuropathy
Related diabetes-family ICD-10 code; documentation often becomes more specific when type or complication detail is available.
E08.44Diabetes mellitus due to underlying condition with diabetic amyotrophy
Related diabetes-family ICD-10 code; documentation often becomes more specific when type or complication detail is available.
Code hierarchy
chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E08-E13Diabetes mellitus
category
E08Diabetes mellitus due to underlying condition
category
E08.4Diabetes mellitus due to underlying condition with neurological complications
currentE08.4
Official coding notes
Inclusion terms
- Diabetes mellitus due to underlying condition with diabetic neuralgia
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 codes
E08.40Diabetes mellitus due to underlying condition with diabetic neuropathy, unspecifiedcodeE08.41Diabetes mellitus due to underlying condition with diabetic mononeuropathycodeE08.43Diabetes mellitus due to underlying condition with diabetic autonomic (poly)neuropathycodeE08.44Diabetes mellitus due to underlying condition with diabetic amyotrophycodeE08.49Diabetes mellitus due to underlying condition with other diabetic neurological complicationcode
Sibling codes
E08.40Diabetes mellitus due to underlying condition with diabetic neuropathy, unspecifiedbillableE08.41Diabetes mellitus due to underlying condition with diabetic mononeuropathybillableE08.43Diabetes mellitus due to underlying condition with diabetic autonomic (poly)neuropathybillableE08.44Diabetes mellitus due to underlying condition with diabetic amyotrophybillableE08.49Diabetes mellitus due to underlying condition with other diabetic neurological complicationbillable
Coverage-related procedures and services
CPT 0446Thigh
CREATION OF SUBCUTANEOUS POCKET WITH INSERTION OF IMPLANTABLE INTERSTITIAL GLUCOSE SENSOR, INCLUDING SYSTEM ACTIVATION AND PATIENT TRAINING
Source: CMS coverage guidance
CPT 95907high
NERVE CONDUCTION STUDIES; 1-2 STUDIES
Source: CMS coverage guidance
CPT 95912high
NERVE CONDUCTION STUDIES; 11-12 STUDIES
Source: CMS coverage guidance
CPT 95913high
NERVE CONDUCTION STUDIES; 13 OR MORE STUDIES
Source: CMS coverage guidance
CPT 95908high
NERVE CONDUCTION STUDIES; 3-4 STUDIES
Source: CMS coverage guidance
CPT 95909high
NERVE CONDUCTION STUDIES; 5-6 STUDIES
Source: CMS coverage guidance
Coding guidelines
Common synonyms
Diabetes mellitus due to underlying condition with diabetic polyneuropathy
Frequently asked questions
šReferences
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.