ICD-10 M40.203
Billable / SpecificUnspecified kyphosis, cervicothoracic region
About ICD-10-CM M40.203
ICD-10-CM code M40.203 represents Unspecified kyphosis, cervicothoracic region. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M40). The 2026 edition of ICD-10-CM M40.203 became effective on October 1, 2025.
Medicare LCD Coverage for M40.203
Local Coverage Determinations (LCDs) from CMS MACs that list M40.203 as a covered diagnosis.
Showing top 10 of 295 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing M40.203.
2 Cigna
5 Medicare
CPT Codes Commonly Billed with M40.203
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
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 M40.203 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| M40.203 | 73710 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To M40.203
Other codes in section M40-M43 (Deforming dorsopathies).
ICD-10 M40.203, Billing FAQ
Is ICD-10 code M40.203 billable? +
Yes, M40.203 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What ICD-9 codes does M40.203 map to? +
Per CMS GEMs, M40.203 maps to ICD-9 codes: 73710. Useful for legacy data review and historical claim analysis.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team