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

ICD-10 D34

Billable / Specific

Benign neoplasm of thyroid gland

D34
Block
0
Synonyms
183
LCDs
10
Payer Policies
1
Linked CPTs

About ICD-10-CM D34

ICD-10-CM code D34 represents Benign neoplasm of thyroid gland. This is a billable/specific code in the Neoplasms chapter (block D34). The 2026 edition of ICD-10-CM D34 became effective on October 1, 2025.

Use Additional Code

When coding D34, also report these additional codes when applicable.

  • code to identify any functional activity

Medicare LCD Coverage for D34

Local Coverage Determinations (LCDs) from CMS MACs that list D34 as a covered diagnosis.

183 LCDs

Showing top 10 of 183 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64420 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 20561 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64415 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64447 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64448 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64416 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64405 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64454 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64425 →
CMS LCD: Billing and Coding: Peripheral Nerve Blocks
Article ID: 57452, Effective: 2025-10-01 00:00:00, 1570 covered, 0 non-covered
CPT 64450 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing D34.

10 policies

1 Cigna

Head and Neck Ultrasound - (0549)
Policy ID: MM_0549

5 Medicare

Billing and Coding: Biomarkers for Oncology
Policy ID: ART-52986
Billing and Coding: Flow Cytometry
Policy ID: ART-56464
Billing and Coding: Computerized Axial Tomography (CT), Thorax
Policy ID: ART-56580
Billing and Coding: Implantable Infusion Pump
Policy ID: ART-56695
Billing and Coding: Magnetic Resonance Imaging of the Head and Neck
Policy ID: ART-56729

CPT Codes Commonly Billed with D34

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

1 linkages
  • 76536 CMS LCD: Billing and Coding: Ultrasound, Soft Tissues of Head and Neck CMS LCD

Convert D34 to ICD-9-CM

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

ICD-10ICD-9Mapping Flags
D34 226 00000

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

ICD-10 D34, Billing FAQ

Is ICD-10 code D34 billable? +

Yes, D34 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 D34? +

Procedures frequently paired with D34 include: 76536.

What ICD-9 codes does D34 map to? +

Per CMS GEMs, D34 maps to ICD-9 codes: 226. 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 June 1, 2026.

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