ICD10BillableValid for clinical use

ICD-10 Code L89.91: Pressure ulcer of unspecified site, stage 1

L89.91 is a billable ICD-10 diagnosis code used to classify Pressure ulcer of unspecified site, stage 1 in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).

When is it used?

  • May be used when a clinician documents pressure ulcer of unspecified site, stage 1 in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
12Diseases of the skin and subcutaneous tissue (L00-L99)
block
L80-L99Other disorders of the skin and subcutaneous tissue
category
L89Pressure ulcer
category
L89.9Pressure ulcer of unspecified site
currentL89.9

Official coding notes

Inclusion terms
  • Healing pressure ulcer of unspecified site, stage 1
  • Pressure pre-ulcer skin changes limited to persistent focal edema, unspecified site

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Dermatologist

Coding guidelines

Common synonyms

Pressure ulcer of unspecified site, stage 1Pressure ulcer of site, stage 1

Frequently asked questions

Code details

CodeL89.91
SystemICD10
Display namePressure ulcer of unspecified site, stage 1
ChapterDiseases of the skin and subcutaneous tissue (L00-L99)
BlockOther disorders of the skin and subcutaneous tissue

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code L89.91 for Pressure ulcer of unspecified site, stage 1 | HealthAssure