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

ICD-10 G90.A

Billable / Specific

Postural orthostatic tachycardia syndrome [POTS]

G90
Block
2
Synonyms
6
LCDs
5
Payer Policies
0
Linked CPTs

About ICD-10-CM G90.A

ICD-10-CM code G90.A represents Postural orthostatic tachycardia syndrome [POTS]. This is a billable/specific code in the Nervous System chapter (block G90). The 2026 edition of ICD-10-CM G90.A became effective on October 1, 2025.

Inclusion Terms / Approximate Synonyms

Clinical terms and conditions classified under G90.A. Per CMS ICD-10-CM Tabular 2026.

  • Chronic orthostatic intolerance
  • Postural tachycardia syndrome

Medicare LCD Coverage for G90.A

Local Coverage Determinations (LCDs) from CMS MACs that list G90.A as a covered diagnosis.

6 LCDs

Showing top 6. 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: Autonomic Function Testing
Article ID: 57024, Effective: 2023-10-01 00:00:00, 64 covered, 0 non-covered
CPT 95921 →
CMS LCD: Billing and Coding: Autonomic Function Testing
Article ID: 57024, Effective: 2023-10-01 00:00:00, 64 covered, 0 non-covered
CPT 95923 →
CMS LCD: Billing and Coding: Autonomic Function Testing
Article ID: 57024, Effective: 2023-10-01 00:00:00, 64 covered, 0 non-covered
CPT 95999 →
CMS LCD: Billing and Coding: Autonomic Function Testing
Article ID: 57024, Effective: 2023-10-01 00:00:00, 64 covered, 0 non-covered
CPT 95922 →
CMS LCD: Billing and Coding: Autonomic Function Testing
Article ID: 57024, Effective: 2023-10-01 00:00:00, 64 covered, 0 non-covered
CPT 95924 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing G90.A.

5 policies

3 Cigna

Electrodiagnostic Testing (EMG/NCV) - (CPG129)
Policy ID: CPG129_EMG_NCV_SSEP
Transthoracic Echocardiography in Adults - (0510)
Policy ID: MM_0510
Transthoracic Echocardiography in Children - (0523)
Policy ID: MM_0523

2 Medicare

Billing and Coding: Autonomic Function Testing
Policy ID: ART-57024
Billing and Coding: Magnesium
Policy ID: ART-59186

CPT Codes Commonly Billed with G90.A

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

No procedure linkages on file for G90.A

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.

ICD-10 G90.A, Billing FAQ

Is ICD-10 code G90.A billable? +

Yes, G90.A is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

What other names or terms map to G90.A? +

ICD-10 G90.A includes: Chronic orthostatic intolerance; Postural tachycardia syndrome.

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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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