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ICD-10-CM 2027 diagnosis code

H01.112Allergic dermatitis of right lower eyelid

✓ Billable / specific

H01.112 is a valid, billable ICD-10-CM code for allergic dermatitis of right lower eyelid. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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 H01.112

H01.112 is the ICD-10-CM diagnosis code for allergic dermatitis of right lower eyelid. It belongs to category H01 (other inflammation of eyelid), block H00-H05 (disorders of eyelid, lacrimal system and orbit) 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 H01.11 (allergic dermatitis of eyelid), H01.112 is specifically for allergic dermatitis of right lower eyelid. Related codes cover right upper eyelid (H01.111), right eye, unspecified eyelid (H01.113), left upper eyelid (H01.114), left lower eyelid (H01.115), left eye, unspecified eyelid (H01.116) and unspecified eye, unspecified eyelid (H01.119).

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 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 373.32 (contact and allergic dermatitis of eyelid).

Notes that apply from higher levels

Instructions written at a parent level also apply to H01.112.

Broader instructions also apply from H00-H05 Disorders of eyelid, lacrimal system and orbit and Chapter 7: Diseases of the eye and adnexa.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to H01.112.

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 →
  • 373.32Contact and allergic dermatitis of eyelidapproximate

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 H01.112

Is H01.112 billable?

Yes. H01.112 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can H01.112 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict H01.112 as a principal diagnosis.

Is H01.112 a CC or MCC?

No. H01.112 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does H01.112 group to?

H01.112 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.

What is the ICD-9 code for H01.112?

The CMS General Equivalence Mappings map H01.112 to ICD-9-CM 373.32.