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ICD-10-CM 2027 diagnosis code

L81.0Postinflammatory hyperpigmentation

✓ Billable / specific

L81.0 is a valid, billable ICD-10-CM code for postinflammatory hyperpigmentation. 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 L81.0

L81.0 is the ICD-10-CM diagnosis code for postinflammatory hyperpigmentation. It belongs to category L81 (other disorders of pigmentation), block L80-L99 (other disorders of the skin and subcutaneous tissue) and chapter 12 (diseases of the skin and subcutaneous 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 L81 (other disorders of pigmentation), L81.0 is specifically for postinflammatory hyperpigmentation. Related codes cover Chloasma (L81.1), Freckles (L81.2), cafe au lait spots (L81.3), other melanin hyperpigmentation (L81.4), Leukoderma, not elsewhere classified (L81.5), other disorders of diminished melanin formation (L81.6), pigmented purpuric dermatosis (L81.7), other specified disorders of pigmentation (L81.8) and 1 more.

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 606 (Minor Skin Disorders with MCC, relative weight 1.5728), DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772) and DRG 795 (Normal Newborn, relative weight 0.2022), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 709.09 (other dyschromia).

Notes that apply from higher levels

Instructions written at a parent level also apply to L81.0.

› From L81 Other disorders of pigmentation
Excludes1
Excludes2
  • nevus - see Alphabetical Index

Broader instructions also apply from Chapter 12: Diseases of the skin and subcutaneous tissue.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to L81.0.

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.

MDC 09 · Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

ICD-9-CM equivalent

Converter →
  • 709.09Other dyschromiaapproximate

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 L81.0

Is L81.0 billable?

Yes. L81.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can L81.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict L81.0 as a principal diagnosis.

Is L81.0 a CC or MCC?

No. L81.0 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does L81.0 group to?

L81.0 is used in the MS-DRG v44.0 logic for MS-DRG 606 (Minor Skin Disorders with MCC), MS-DRG 607 (Minor Skin Disorders without MCC) and MS-DRG 795 (Normal Newborn). 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 L81.0?

The CMS General Equivalence Mappings map L81.0 to ICD-9-CM 709.09.