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ICD-10-CM 2027 diagnosis code

H57.8A2Foreign body sensation, left eye

✓ Billable / specific

H57.8A2 is a valid, billable ICD-10-CM code for foreign body sensation, left eye. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code last changed in FY2024 (effective October 1, 2023). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About H57.8A2

H57.8A2 is the ICD-10-CM diagnosis code for foreign body sensation, left eye. It belongs to category H57 (other disorders of eye and adnexa), block H55-H57 (other disorders of eye and adnexa) and chapter 7 (diseases of the eye and adnexa). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within H57.8A (foreign body sensation eye (ocular)), H57.8A2 is specifically for foreign body sensation, left eye. Related codes cover right eye (H57.8A1), bilateral eyes (H57.8A3) and unspecified eye (H57.8A9).

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 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), 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 was added in FY2024, effective October 1, 2023.

Notes that apply from higher levels

Instructions written at a parent level also apply to H57.8A2.

Broader instructions also apply from Chapter 7: Diseases of the eye and adnexa.

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.

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
  • FY2024 (effective 10/1/2023): Added
  • No changes since FY2024.

Common questions about H57.8A2

Is H57.8A2 billable?

Yes. H57.8A2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can H57.8A2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict H57.8A2 as a principal diagnosis.

Is H57.8A2 a CC or MCC?

No. H57.8A2 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does H57.8A2 group to?

H57.8A2 is used in the MS-DRG v44.0 logic for MS-DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent) and MS-DRG 125 (Other Disorders of the Eye without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.