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ICD-10-CM 2027 diagnosis code

M53.1Cervicobrachial syndrome

✓ Billable / specific

M53.1 is a valid, billable ICD-10-CM code for cervicobrachial syndrome. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Cervical root syndrome.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About M53.1

M53.1 is the ICD-10-CM diagnosis code for Cervicobrachial syndrome. It belongs to category M53 (other and unspecified dorsopathies, not elsewhere classified), block M50-M54 (other dorsopathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within M53 (other and unspecified dorsopathies, not elsewhere classified), M53.1 is specifically for Cervicobrachial syndrome. Related codes cover Cervicocranial syndrome (M53.0), spinal instabilities (M53.2), sacrococcygeal disorders, not elsewhere classified (M53.3), other specified dorsopathies (M53.8) and dorsopathy, unspecified (M53.9).

The conditions in its Excludes2 note aren't part of M53.1, but may be coded alongside it if the patient has both: cervical disc disorder (M50.-) and thoracic outlet syndrome (G54.0).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 073 (Cranial and Peripheral Nerve Disorders with MCC, relative weight 1.5779) and DRG 074 (Cranial and Peripheral Nerve Disorders without MCC, relative weight 1.0173), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 723.3 (Cervicobrachial syndrome (diffuse)).

Coding notes

Excludes2Not included here — may be reported together if both conditions exist
  • cervical disc disorder (M50.-)
  • thoracic outlet syndrome (G54.0)

Notes that apply from higher levels

Instructions written at a parent level also apply to M53.1.

Broader instructions also apply from M50-M54 Other dorsopathies and Chapter 13: Diseases of the musculoskeletal system and connective tissue.

Alphabetic index entries

3 entries

Terms in the official ICD-10-CM index that lead to M53.1.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

ICD-9-CM equivalent

Converter →
  • 723.3Cervicobrachial syndrome (diffuse)exact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about M53.1

Is M53.1 billable?

Yes. M53.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can M53.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict M53.1 as a principal diagnosis.

Is M53.1 a CC or MCC?

No. M53.1 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does M53.1 group to?

M53.1 is used in the MS-DRG v44.0 logic for MS-DRG 073 (Cranial and Peripheral Nerve Disorders with MCC) and MS-DRG 074 (Cranial and Peripheral Nerve Disorders without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for M53.1?

The CMS General Equivalence Mappings map M53.1 to ICD-9-CM 723.3.