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

ICD-10 Z46.51

Billable / Specific

Encounter for fitting and adjustment of gastric lap band

Z46
Block
0
Synonyms
72
LCDs
3
Payer Policies
0
Linked CPTs

About ICD-10-CM Z46.51

ICD-10-CM code Z46.51 represents Encounter for fitting and adjustment of gastric lap band. This is a billable/specific code in the Factors Influencing Health Status chapter (block Z46). The 2026 edition of ICD-10-CM Z46.51 became effective on October 1, 2025.

Medicare LCD Coverage for Z46.51

Local Coverage Determinations (LCDs) from CMS MACs that list Z46.51 as a covered diagnosis.

72 LCDs

Showing top 10 of 72 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Article ID: 54923, Effective: 2026-01-01 00:00:00, 169 covered, 0 non-covered
CPT 43846 →
CMS LCD: Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Article ID: 54923, Effective: 2026-01-01 00:00:00, 169 covered, 0 non-covered
CPT 43845 →
CMS LCD: Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Article ID: 54923, Effective: 2026-01-01 00:00:00, 169 covered, 0 non-covered
CPT 43847 →
CMS LCD: Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Article ID: 54923, Effective: 2026-01-01 00:00:00, 169 covered, 0 non-covered
CPT 43770 →
CMS LCD: Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Article ID: 54923, Effective: 2026-01-01 00:00:00, 169 covered, 0 non-covered
CPT 43644 →
CMS LCD: Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Article ID: 54923, Effective: 2026-01-01 00:00:00, 169 covered, 0 non-covered
CPT 43775 →
CMS LCD: Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Article ID: 54923, Effective: 2026-01-01 00:00:00, 169 covered, 0 non-covered
CPT 43999 →
CMS LCD: Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Article ID: 54923, Effective: 2026-01-01 00:00:00, 169 covered, 0 non-covered
CPT 43645 →
CMS LCD: Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
Article ID: 57414, Effective: 2025-10-01 00:00:00, 457 covered, 0 non-covered
CPT 43246 →
CMS LCD: Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
Article ID: 57414, Effective: 2025-10-01 00:00:00, 457 covered, 0 non-covered
CPT 43192 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing Z46.51.

3 policies

2 Medicare

Billing and Coding: Bariatric Surgery for Treatment of Co-Morbidities Conditions Related to Morbid Obesity
Policy ID: ART-54923
Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
Policy ID: ART-57414

1 Aetna

Obesity Surgery
Policy ID: CPB-0157

CPT Codes Commonly Billed with Z46.51

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

No procedure linkages on file for Z46.51

We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.

Convert Z46.51 to ICD-9-CM

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

ICD-10ICD-9Mapping Flags
Z46.51 V5351 00000

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

Codes Adjacent To Z46.51

Other codes in section Z40-Z53 (Encounters for other specific health care).

ICD-10 Z46.51, Billing FAQ

Is ICD-10 code Z46.51 billable? +

Yes, Z46.51 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

What ICD-9 codes does Z46.51 map to? +

Per CMS GEMs, Z46.51 maps to ICD-9 codes: V5351. 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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