ICD-10-CM 2026 · Effective October 1, 2025

ICD-10 E86.0

Billable / Specific

Dehydration

E86
Block
0
Synonyms
156
LCDs
8
Payer Policies
4
Linked CPTs

About ICD-10-CM E86.0

ICD-10-CM code E86.0 represents Dehydration. This is a billable/specific code in the Endocrine, Nutritional, and Metabolic chapter (block E86). The 2026 edition of ICD-10-CM E86.0 became effective on October 1, 2025.

Medicare LCD Coverage for E86.0

Local Coverage Determinations (LCDs) from CMS MACs that list E86.0 as a covered diagnosis.

156 LCDs

Showing top 10 of 156 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: Magnesium
Article ID: 59186, Effective: 2025-10-01 00:00:00, 4358 covered, 0 non-covered
CPT 83735 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT 93320 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT 93313 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT 93312 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT 93318 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT Q9956 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT 93317 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT C8927 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT C8925 →
CMS LCD: Billing and Coding: Transesophageal Echocardiography (TEE)
Article ID: 56505, Effective: 2026-02-26 00:00:00, 501 covered, 1 non-covered
CPT Q9957 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing E86.0.

8 policies

5 Medicare

Billing and Coding: Cardiac Catheterization and Coronary Angiography
Policy ID: ART-56500
Billing and Coding: Transesophageal Echocardiography (TEE)
Policy ID: ART-56505
Billing and Coding: Echocardiography
Policy ID: ART-56625
Billing and Coding: Serum Magnesium
Policy ID: ART-57189
Billing and Coding: Electrocardiograms
Policy ID: ART-57326

1 Aetna

Intestinal Transplantation
Policy ID: CPB-0605

CPT Codes Commonly Billed with E86.0

Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.

4 linkages
  • 80048 Basic metabolic panel — diabetes, HTN, CKD, electrolyte disorders, abnormal labs, routine exam, HF, dehydration Laboratory
  • 75635 CMS LCD: Billing and Coding: Cardiac Catheterization and Coronary Angiography CMS LCD
  • 93503 CMS LCD: Billing and Coding: Cardiac Catheterization and Coronary Angiography CMS LCD
  • 36221 CMS LCD: Billing and Coding: Cardiac Catheterization and Coronary Angiography CMS LCD

Convert E86.0 to ICD-9-CM

Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.

ICD-10ICD-9Mapping Flags
E86.0 27651 00000

Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).

ICD-10 E86.0, Billing FAQ

Is ICD-10 code E86.0 billable? +

Yes, E86.0 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

What CPT codes are commonly billed with E86.0? +

Procedures frequently paired with E86.0 include: 80048, 75635, 93503, 36221.

What ICD-9 codes does E86.0 map to? +

Per CMS GEMs, E86.0 maps to ICD-9 codes: 27651. Useful for legacy data review and historical claim analysis.

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Reviewed by the PayerReady Medical Coding Team

Verified against the CMS 2026 code set on May 31, 2026.

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