M99.1 ICD-10-CM Code: Subluxation complex (vertebral)
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Coder workflow for M99.1
MedCoder structured workflow — derived from this code’s own official record
Before you code M99.1
- M99.1 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).
ReviewM99.10, M99.11, M99.12, M99.13, M99.14, M99.15, M99.16, M99.17, M99.18, M99.19
See the relationships section · Guide: How to choose an ICD-10-CM code →
Choose the right path
- Does the documentation support one of the more specific codes beneath M99.1?
Yes → Select that code and continue the checks below on its own page.
No → M99.1 cannot be reported as written; query for the specificity its subcategory needs.ReviewM99.10, M99.11, M99.12, M99.13, M99.14, M99.15, M99.16, M99.17, M99.18, M99.19
Consider M99.1. Then confirm the code is valid for the date of service in the Verify section.
Documentation check
- The provider’s diagnostic statement
- Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.
Code Overview
MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.
Verify Before Coding
From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.
Relationships & Classification
MedCoder structured relationships — computed from published CMS and AHRQ datasets
Other codes that name M99.1 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.
Referenced by 1 Excludes1 note: M43.5 — Other recurrent vertebral dislocation (via M99.-).
These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.
Contextual Map
Every relationship of M99.1 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Run M99.1 with this related code in Claim Check
Hierarchy
- M00-M99 — Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) (M00-M99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- M99-M99 — Biomechanical lesions, not elsewhere classified[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
Referenced by Excludes1 notes
- M43.5 — Other recurrent vertebral dislocation[Excludes1](via M99.-): “biomechanical lesions NEC (M99.-)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026
Nearest codes (40)
- M99 — Biomechanical lesions, not elsewhere classified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- M99.0 — Segmental and somatic dysfunction[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- M99.00 — Segmental and somatic dysfunction of head region[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- M99.01 — Segmental and somatic dysfunction of cervical region[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- M99.02 — Segmental and somatic dysfunction of thoracic region[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- M99.03 — Segmental and somatic dysfunction of lumbar region[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- M99.04 — Segmental and somatic dysfunction of sacral region[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- M99.05 — Segmental and somatic dysfunction of pelvic region[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
- and 32 more
Change history
- FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016
Common coding questions
Can M99.1 be billed directly?
No. M99.1 (Subluxation complex (vertebral)) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Sources for this page
Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.
- Code, title, tabular notes and index terms Official source data
- CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page
- Claim edits Official source data
- CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page
- Change history and date-of-service validity Official source data
- CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
- Comparisons, relationships and the contextual map MedCoder structured relationship
- Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
- Summary and FAQ answers MedCoder explanation
- Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.
Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates
Cite this page
Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.
MedCoder.ai. "M99.1 — Subluxation complex (vertebral)." ICD-10-CM FY2026. https://medcoder.ai/icd10/code/m99.1-subluxation-complex-vertebral
Change history
- FY2016 — October 1, 2015In the code set at ICD-10-CM adoptionSubluxation complex (vertebral)
No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027 (effective October 1, 2026), and none are recorded for this code. Note changes are tracked from FY2027 only.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to M99.1 in its code family, with their registry titles.
- M99.05 — Segmental and somatic dysfunction of pelvic region
- M99.06 — Segmental and somatic dysfunction of lower extremity
- M99.07 — Segmental and somatic dysfunction of upper extremity
- M99.08 — Segmental and somatic dysfunction of rib cage
- M99.09 — Segmental and somatic dysfunction of abdomen and other regions
- M99.10 — Subluxation complex (vertebral) of head region
- M99.11 — Subluxation complex (vertebral) of cervical region
- M99.12 — Subluxation complex (vertebral) of thoracic region
- M99.13 — Subluxation complex (vertebral) of lumbar region
- M99.14 — Subluxation complex (vertebral) of sacral region