ICD-10-CM Tabular Index · Chapter 13 · FY 2026 M49

Spondylopathies in diseases classified elsewhere (M49) ICD-10-CM

The M49 code range covers spondylopathies in diseases classified elsewhere with 12 ICD-10-CM diagnosis codes. 10 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
12
Diagnosis Codes
10
Billable Codes
M49
Code Range
M45–M49
Parent Section

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

Code First

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

ICD-10-CM

Codes in the M49 Range 12 codes · 10 billable

12 of 12 shown
  • M49 Spondylopathies in diseases classified elsewhereNon-billable
  • M49.8 Spondylopathy in diseases classified elsewhereNon-billable
  • M49.80 Spondylopathy in diseases classified elsewhere, site unspecified
  • M49.81 Spondylopathy in diseases classified elsewhere, occipito-atlanto-axial region
  • M49.82 Spondylopathy in diseases classified elsewhere, cervical region
  • M49.83 Spondylopathy in diseases classified elsewhere, cervicothoracic region
  • M49.84 Spondylopathy in diseases classified elsewhere, thoracic region
  • M49.85 Spondylopathy in diseases classified elsewhere, thoracolumbar region
  • M49.86 Spondylopathy in diseases classified elsewhere, lumbar region
  • M49.87 Spondylopathy in diseases classified elsewhere, lumbosacral region
  • M49.88 Spondylopathy in diseases classified elsewhere, sacral and sacrococcygeal region
  • M49.89 Spondylopathy in diseases classified elsewhere, multiple sites in spine

About the M49 Code Range

The ICD-10 code M49 and its subcodes are used to classify various types of spondylopathies that occur as part of other underlying diseases, affecting different regions of the spine. These codes help specify spinal conditions linked to infections, inflammatory diseases, or systemic disorders rather than primary spinal disorders.

Specifically, M49.80 covers spondylopathies where the exact spinal site is unspecified and includes infections such as Brucella spondylitis caused by different Brucella species (e.g., Brucella abortus, melitensis, canis, suis). This connection helps coders identify when spondylopathy is due to such infectious causes. Codes from M49.81 through M49.89 localize the spondylopathy to precise spinal regions such as the occipito-atlanto-axial, cervical, thoracic, lumbar, or sacral areas, including the lumbosacral region and multiple spine sites. For example, M49.88 also relates to conditions involving the sacral curve. Understanding these distinctions is crucial for accurate coding of spinal involvement in systemic diseases, ensuring clear medical records and facilitating appropriate patient management.

Questions About This Page

How many billable codes are in the M49 range?

Of the 12 codes in this range, 10 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the M49 range classify?

The range classifies spondylopathies in diseases classified elsewhere. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.