---
title: "ICD-10-CM M51.84: Other intervertebral disc disorders… | BillingBrief"
description: "ICD-10-CM code M51.84: Other intervertebral disc disorders, thoracic region. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/m51.84/"
language: "en"
---

# M51.84 Other intervertebral disc disorders, thoracic region

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Other intervertebral disc disorders, thoracic region

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   current injury - see injury of spine by body region
-   discitis NOS (M46.4-)

### Excludes2

Not part of this code, but both can be coded when both are documented.

-   cervical and cervicothoracic disc disorders (M50.-)
-   sacral and sacrococcygeal disorders (M53.3)

## Related codes

-   [`M51.44` Schmorl's nodes, thoracic region ICD-10-CM](https://billingbrief.com/icd10/m51.44/)
-   [`M51.45` Schmorl's nodes, thoracolumbar region ICD-10-CM](https://billingbrief.com/icd10/m51.45/)
-   [`M51.46` Schmorl's nodes, lumbar region ICD-10-CM](https://billingbrief.com/icd10/m51.46/)
-   [`M51.47` Schmorl's nodes, lumbosacral region ICD-10-CM](https://billingbrief.com/icd10/m51.47/)
-   [`M51.85` Other intervertebral disc disorders, thoracolumbar region ICD-10-CM](https://billingbrief.com/icd10/m51.85/)
-   [`M51.86` Other intervertebral disc disorders, lumbar region ICD-10-CM](https://billingbrief.com/icd10/m51.86/)
-   [`M51.87` Other intervertebral disc disorders, lumbosacral region ICD-10-CM](https://billingbrief.com/icd10/m51.87/)
-   [`M51.9` Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorder ICD-10-CM](https://billingbrief.com/icd10/m51.9/)

## Common questions

### Is M51.84 a billable code?

Yes. M51.84 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

M51 Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders

Chapter

Diseases of the musculoskeletal system and connective tissue

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).