All ICD10 Codes
L97Not billable, use a more specific code below

Non-pressure chronic ulcer of lower limb, not elsewhere classified

In Other disorders of the skin and subcutaneous tissue (L80-L99), chapter 12: Diseases of the Skin and Subcutaneous Tissue

168 billable codes under L97: 153 are a CC; all map to HCC 380 (Chronic Ulcer of Skin, Except Pressure, Through to Bone or Muscle), HCC 383 (Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Includes: conditions that are coded here

  • chronic ulcer of skin of lower limb NOS
  • non-healing ulcer of skin
  • non-infected sinus of skin
  • trophic ulcer NOS
  • tropical ulcer NOS
  • ulcer of skin of lower limb NOS

Excludes2: not included here, code separately if applicable

  • pressure ulcer (pressure area) (L89.-)
  • skin infections (L00-L08)
  • specific infections classified to A00-B99

Code first: code the underlying condition first, then this code

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

  • Section I.C.12.b Non-Pressure Chronic Ulcers (page 60), covers L97

    Code nothing for non-pressure ulcers healed on admission; code healing ulcers by documented severity, else unspecified severity. If the ulcer worsens during the stay, code both the admission severity and the highest severity.

Other Chapter 12 topics:

Read Section I.C.12 (page 58)

All codes under L97

L97 can't be used on a claim. Pick a billable code below; grey headings group them.

L97 MS-DRGs

As the principal diagnosis, all 168 billable codes under L97 group to MS-DRG 573, 574, 575, 592, 593, or 594 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Other codes that refer to L97

Notes on these codes point to L97.

  • I70.23 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.24 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.26 Use Additional Code: code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
  • I70.33 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.34 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.36 Use Additional Code: code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
  • I70.43 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.44 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.46 Use Additional Code: code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
  • I70.53 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.54 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.56 Use Additional Code: code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
  • I70.63 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.64 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.66 Use Additional Code: code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
  • I70.73 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.74 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I70.76 Use Additional Code: code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
  • I83.0 Use Additional Code: code to identify severity of ulcer (L97.-)
  • I83.2 Use Additional Code: code to identify severity of ulcer (L97.-)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

Read more about skin conditions on MedlinePlus

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.