Every policy word on this page is CMS's own. Verzi adds pins, receipts, and links only.
Spinal Orthoses: TLSO and LSO
LCD L33790 · CMS's HCPCS descriptor for L0491: Tlso, sagittal-coronal control, modular segmented spinal system, two rigid plastic shells, posterior extends from the sacrococcygeal junction and terminates just inferior to the scapular spine, anterior extends from the symphysis pubis to the xiphoid, soft liner, restricts gross trunk motion in the sagittal and coronal planes, lateral strength is provided by overlapping plastic and stabilizing closures, includes straps and closures, prefabricated, includes fitting and adjustment.
Not on CMS's Required Prior Authorization List for DMEPOS on 2026-10-13. source
LCD L33790 · 6 versions, 2015 to today · last changed 2020-01-01 (R5)
Version 2 of LCD L33790: in force by CMS's dates 2015-10-01 to 2015-09-30. The policy text on this page comes from this archived version.
JA · Noridian 16013
JB · CGS 17013
JC · CGS 18003
JD · Noridian 19003
source
CMS's Who are the MACs jurisdiction pages (DME facts as of 2025-09-30) name each contractor and its states; the MCD's Contractor Information table on every DME LCD prints the contract numbers. Both read 2026-10-09. Verzi adds the state lookup only.
33 more codes
Sections in this version: CMS National Coverage Policy · Coverage Indications, Limitations, and/or Medical Necessity · Coding Information · Associated Information · Sources of Information and Basis for Decision. Plus 3 sections marked N/A in this version.
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Version history, LCD L33790
CMS numbers each version. Each box shows the version's window by CMS's stated dates. Select a version to show it on this page. Versions superseded the same day they took effect never governed a claim, so the page hides them until you ask. Version numbers CMS never published to its archive do not exist as documents.
Revision history, every version
CMS's own change log, quoted, 5 entries. It does not change with the version shown. A revision (R-number) is a change CMS logged. The version (vN) is the snapshot that carries it.
R5 · 2020-01-01 · v20
Revision Effective Date: 01/01/2020 COVERAGE INDICATIONS, LIMITATIONS, AND/OR MEDICAL NECESSITY: Revised: Format of HCPCS code references, from code ‘spans’ to individually-listed HCPCS Revised: Order information as a result of Final Rule 1713 CODING INFORMATION: Removed: Field titled “Bill Type” Removed: Field titled “Revenue Codes” Removed: Field titled “ICD-10 Codes that Support Medical Necessity” Removed: Field titled “ICD-10 Codes that DO NOT Support Medical Necessity” Removed: Field titled “Additional ICD-10 Information” DOCUMENTATION REQUIREMENTS: Revised: “physician’s” to “treating practitioner’s” GENERAL DOCUMENTATION REQUIREMENTS: Revised: Prescriptions (orders) to SWO 03/05/2020: Pursuant to the 21st Century Cures Act, these revisions do not require notice and comment because they are due to non-discretionary coverage updates reflective of CMS FR-1713, HCPCS code changes, and non-substantive corrections (listing individual HCPCS codes instead of a HCPCS code-span).
R4 · 2018-01-01 · v15
Revision Effective Date: 01/01/2018 CODING INFORMATION: Added: HCPCS codes L0622 and L0624 to Group 1 HCPCS Code table 04/19/2018: At this time 21st Century Cures Act will apply to new and revised LCDs that restrict coverage which requires comment and notice. This revision is not a restriction to the coverage determination; and, therefore not all the fields included on the LCD are applicable as noted in this policy.
R3 · 2017-01-01 · v13
Revision Effective Date: 01/01/2017: COVERAGE INDICATIONS, LIMITATIONS AND/OR MEDICAL NECESSITY: Removed: Standard Documentation Language Added: New reference language and Directions to Standard Documentation Requirements Added: General Requirements HCPCS CODES: Added: HCPCS Code A4467 Deleted: HCPCS Code A4466 DOCUMENTATION REQUIREMENTS: Removed: Standard Documentation Language Added: General Documentation Requirements Added: New reference language and Directions to Standard Documentation Requirements POLICY SPECIFIC DOCUMENTATION REQUIREMENTS: Removed: Standard Documentation Language Added: Directions to Standard Documentation Requirements Removed: Supplier Manual reference from Miscellaneous section Removed: Information under Appendices RELATED LOCAL COVERAGE DOCUMENTS: Added: LCD-related Standard Documentation Requirements article
R2 · 2016-07-01 · v8
Effective July 1, 2016 oversight for DME MAC LCDs is the responsibility of CGS Administrators, LLC 18003 and 17013 and Noridian Healthcare Solutions, LLC 19003 and 16013. No other changes have been made to the LCDs.
R1 · 2015-10-01 · v5
Revision Effective Date: 05/01/2015 COVERAGE INDICATIONS, LIMITATIONS AND/OR MEDICAL NECESSITY: Revised: Standard Documentation Language to add covered prior to a beneficiary’s Medicare eligibility DOCUMENTATION REQUIREMENTS: Deleted: Reference to refill of supplies from Continued Use Revised: Standard Documentation Language to add who can enter date of delivery date on the POD Added: Instructions for Equipment Retained from a Prior Payer POLICY SPECIFIC DOCUMENTATION REQUIREMENTS: Added: L0455 requires the CG modifier Revised: Documentation responsibilities for prefabricated vs. custom fabricated devices to reflect revision of April 2015 bulletin article Revised: Repair to beneficiary-owned DMEPOS
Receipts for auditors
Version 2 of LCD L33790, shown on this page: in force by CMS's dates 2015-10-01 to 2015-09-30. Archived 2026-09-26. CMS's copy · Our archived file. 8 of 8 sections are proven word-identical to the archived file.
Every archived version of LCD L33790 (6 versions, CMS's dates, window by the as-of rule). The Article rows are the Article versions in force on the start dates of these LCD versions.
| Document | Version | In force | Archived on | Verify |
|---|---|---|---|---|
| LCD L33790 | version 2 shown | 2015-10-01, superseded same day | 2026-09-26 | CMS's copy · Our archived file |
| LCD L33790 | version 5 | 2015-10-01 to 2016-06-30 | 2026-09-26 | CMS's copy · Our archived file |
| LCD L33790 | version 8 | 2016-07-01 to 2016-12-31 | 2026-09-26 | CMS's copy · Our archived file |
| LCD L33790 | version 13 | 2017-01-01 to 2017-12-31 | 2026-09-26 | CMS's copy · Our archived file |
| LCD L33790 | version 15 | 2018-01-01 to 2019-12-31 | 2026-09-26 | CMS's copy · Our archived file |
| LCD L33790 | version 20 | 2020-01-01 to today | 2026-09-26 | CMS's copy · Our archived file |
| Article A52500 | version 3 | 2015-10-01 to 2016-06-30 | 2026-09-26 | CMS's copy · Our archived file |
| Article A52500 | version 4 | 2016-07-01 to 2016-12-31 | 2026-09-26 | CMS's copy · Our archived file |
| Article A52500 | version 8 | 2017-01-01 to 2017-12-31 | 2026-09-26 | CMS's copy · Our archived file |
| Article A52500 | version 10 | 2018-01-01 to 2018-12-31 | 2026-09-26 | CMS's copy · Our archived file |
| Article A52500 | version 23 | 2020-01-01 to 2021-01-31 | 2026-09-26 | CMS's copy · Our archived file |
| Article A55426 | version 12 | 2017-01-01 to 2017-04-19 | 2026-09-26 | CMS's copy · Our archived file |
| Article A55426 | version 38 | 2017-12-21 to 2018-05-06 | 2026-09-26 | CMS's copy · Our archived file |
| Article A55426 | version 72 | 2020-01-01 to 2020-04-05 | 2026-09-26 | CMS's copy · Our archived file |
Each archived file's page gives its sha256 fingerprint. A copy of the file hashes to the same value, byte for byte.
CMS's live page shows only the current version. To check a passage by eye, open CMS's copy of the same version number. A version's window ends on the earlier of CMS's stated end date and the day before the next version starts.
Every policy word on this page is CMS's, from the archived version named beside it. Verzi adds labels, highlights, citations and links only. Verzi-written summary content on this page: none.
Governing policies, as CMS lists them:
- LCD L33790 · Spinal Orthoses: TLSO and LSO
CMS lists L0491 in group 1 of version 20. CMS's description, quoted: “TLSO, SAGITTAL-CORONAL CONTROL, MODULAR SEGMENTED SPINAL SYSTEM, TWO RIGID PLASTIC SHELLS, POSTERIOR EXTENDS FROM THE SACROCOCCYGEAL JUNCTION AND TERMINATES JUST INFERIOR TO THE SCAPULAR SPINE, ANTERIOR EXTENDS FROM THE SYMPHYSIS PUBIS TO THE XIPHOID, SOFT LINER, RESTRICTS GROSS TRUNK MOTION IN THE SAGITTAL AND CORONAL PLANES, LATERAL STRENGTH IS PROVIDED BY OVERLAPPING PLASTIC AND STABILIZING CLOSURES, INCLUDES STRAPS AND CLOSURES, PREFABRICATED, INCLUDES FITTING AND ADJUSTMENT”.
Related Articles, as CMS lists them: Article A55426 · Article A52500
From CMS's LCD code table. HCPCS Level II codes only.
source
CMS's LCD code table in the Medicare Coverage Database download, archived 2026-10-09: Our archived file.
Watch L0491
One email when any policy cited for L0491 changes or gains a future effective date. Nothing else, ever.