L97
Non-Billable

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

Non-Billable / Non-Specific Code

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

ICD-10-CM L97 is the diagnosis code for Non-pressure chronic ulcer of lower limb, not elsewhere classified. This code falls under the section "Other disorders of the skin and subcutaneous tissue" within Chapter 12 — Diseases of the skin and subcutaneous tissue (L00-L99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

â„šī¸ Excludes2

Coding Guidelines for L97

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in L97. If the patient has both, code each condition separately:

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

ICD-10-CM Code Hierarchy

Understanding where L97 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeL97 — Non-pressure chronic ulcer of lower limb, not elsewhere classified
Sub-Codes 7 entries
L97.1Non-pressure chronic ulcer of thighNon-BillableL97.10Non-pressure chronic ulcer of unspecified thighNon-BillableL97.101Non-pressure chronic ulcer of unspecified thigh limited to breakdown of skinBillableL97.102Non-pressure chronic ulcer of unspecified thigh with fat layer exposedBillableL97.103Non-pressure chronic ulcer of unspecified thigh with necrosis of muscleBillableL97.104Non-pressure chronic ulcer of unspecified thigh with necrosis of boneBillableL97.105Non-pressure chronic ulcer of unspecified thigh with muscle involvement without evidence of necrosisBillableL97.106Non-pressure chronic ulcer of unspecified thigh with bone involvement without evidence of necrosisBillableL97.108Non-pressure chronic ulcer of unspecified thigh with other specified severityBillableL97.109Non-pressure chronic ulcer of unspecified thigh with unspecified severityBillableL97.11Non-pressure chronic ulcer of right thighNon-BillableL97.111Non-pressure chronic ulcer of right thigh limited to breakdown of skinBillableL97.112Non-pressure chronic ulcer of right thigh with fat layer exposedBillableL97.113Non-pressure chronic ulcer of right thigh with necrosis of muscleBillableL97.114Non-pressure chronic ulcer of right thigh with necrosis of boneBillableL97.115Non-pressure chronic ulcer of right thigh with muscle involvement without evidence of necrosisBillableL97.116Non-pressure chronic ulcer of right thigh with bone involvement without evidence of necrosisBillableL97.118Non-pressure chronic ulcer of right thigh with other specified severityBillableL97.119Non-pressure chronic ulcer of right thigh with unspecified severityBillableL97.12Non-pressure chronic ulcer of left thighNon-BillableL97.121Non-pressure chronic ulcer of left thigh limited to breakdown of skinBillableL97.122Non-pressure chronic ulcer of left thigh with fat layer exposedBillableL97.123Non-pressure chronic ulcer of left thigh with necrosis of muscleBillableL97.124Non-pressure chronic ulcer of left thigh with necrosis of boneBillableL97.125Non-pressure chronic ulcer of left thigh with muscle involvement without evidence of necrosisBillableL97.126Non-pressure chronic ulcer of left thigh with bone involvement without evidence of necrosisBillableL97.128Non-pressure chronic ulcer of left thigh with other specified severityBillableL97.129Non-pressure chronic ulcer of left thigh with unspecified severityBillableL97.2Non-pressure chronic ulcer of calfNon-BillableL97.20Non-pressure chronic ulcer of unspecified calfNon-BillableL97.201Non-pressure chronic ulcer of unspecified calf limited to breakdown of skinBillableL97.202Non-pressure chronic ulcer of unspecified calf with fat layer exposedBillableL97.203Non-pressure chronic ulcer of unspecified calf with necrosis of muscleBillableL97.204Non-pressure chronic ulcer of unspecified calf with necrosis of boneBillableL97.205Non-pressure chronic ulcer of unspecified calf with muscle involvement without evidence of necrosisBillableL97.206Non-pressure chronic ulcer of unspecified calf with bone involvement without evidence of necrosisBillableL97.208Non-pressure chronic ulcer of unspecified calf with other specified severityBillableL97.209Non-pressure chronic ulcer of unspecified calf with unspecified severityBillableL97.21Non-pressure chronic ulcer of right calfNon-BillableL97.211Non-pressure chronic ulcer of right calf limited to breakdown of skinBillableL97.212Non-pressure chronic ulcer of right calf with fat layer exposedBillableL97.213Non-pressure chronic ulcer of right calf with necrosis of muscleBillableL97.214Non-pressure chronic ulcer of right calf with necrosis of boneBillableL97.215Non-pressure chronic ulcer of right calf with muscle involvement without evidence of necrosisBillableL97.216Non-pressure chronic ulcer of right calf with bone involvement without evidence of necrosisBillableL97.218Non-pressure chronic ulcer of right calf with other specified severityBillableL97.219Non-pressure chronic ulcer of right calf with unspecified severityBillableL97.22Non-pressure chronic ulcer of left calfNon-BillableL97.221Non-pressure chronic ulcer of left calf limited to breakdown of skinBillableL97.222Non-pressure chronic ulcer of left calf with fat layer exposedBillableL97.223Non-pressure chronic ulcer of left calf with necrosis of muscleBillableL97.224Non-pressure chronic ulcer of left calf with necrosis of boneBillableL97.225Non-pressure chronic ulcer of left calf with muscle involvement without evidence of necrosisBillableL97.226Non-pressure chronic ulcer of left calf with bone involvement without evidence of necrosisBillableL97.228Non-pressure chronic ulcer of left calf with other specified severityBillableL97.229Non-pressure chronic ulcer of left calf with unspecified severityBillableL97.3Non-pressure chronic ulcer of ankleNon-BillableL97.30Non-pressure chronic ulcer of unspecified ankleNon-BillableL97.301Non-pressure chronic ulcer of unspecified ankle limited to breakdown of skinBillableL97.302Non-pressure chronic ulcer of unspecified ankle with fat layer exposedBillableL97.303Non-pressure chronic ulcer of unspecified ankle with necrosis of muscleBillableL97.304Non-pressure chronic ulcer of unspecified ankle with necrosis of boneBillableL97.305Non-pressure chronic ulcer of unspecified ankle with muscle involvement without evidence of necrosisBillableL97.306Non-pressure chronic ulcer of unspecified ankle with bone involvement without evidence of necrosisBillableL97.308Non-pressure chronic ulcer of unspecified ankle with other specified severityBillableL97.309Non-pressure chronic ulcer of unspecified ankle with unspecified severityBillableL97.31Non-pressure chronic ulcer of right ankleNon-BillableL97.311Non-pressure chronic ulcer of right ankle limited to breakdown of skinBillableL97.312Non-pressure chronic ulcer of right ankle with fat layer exposedBillableL97.313Non-pressure chronic ulcer of right ankle with necrosis of muscleBillableL97.314Non-pressure chronic ulcer of right ankle with necrosis of boneBillableL97.315Non-pressure chronic ulcer of right ankle with muscle involvement without evidence of necrosisBillableL97.316Non-pressure chronic ulcer of right ankle with bone involvement without evidence of necrosisBillableL97.318Non-pressure chronic ulcer of right ankle with other specified severityBillableL97.319Non-pressure chronic ulcer of right ankle with unspecified severityBillableL97.32Non-pressure chronic ulcer of left ankleNon-BillableL97.321Non-pressure chronic ulcer of left ankle limited to breakdown of skinBillableL97.322Non-pressure chronic ulcer of left ankle with fat layer exposedBillableL97.323Non-pressure chronic ulcer of left ankle with necrosis of muscleBillableL97.324Non-pressure chronic ulcer of left ankle with necrosis of boneBillableL97.325Non-pressure chronic ulcer of left ankle with muscle involvement without evidence of necrosisBillableL97.326Non-pressure chronic ulcer of left ankle with bone involvement without evidence of necrosisBillableL97.328Non-pressure chronic ulcer of left ankle with other specified severityBillableL97.329Non-pressure chronic ulcer of left ankle with unspecified severityBillableL97.4Non-pressure chronic ulcer of heel and midfootNon-BillableL97.40Non-pressure chronic ulcer of unspecified heel and midfootNon-BillableL97.401Non-pressure chronic ulcer of unspecified heel and midfoot limited to breakdown of skinBillableL97.402Non-pressure chronic ulcer of unspecified heel and midfoot with fat layer exposedBillableL97.403Non-pressure chronic ulcer of unspecified heel and midfoot with necrosis of muscleBillableL97.404Non-pressure chronic ulcer of unspecified heel and midfoot with necrosis of boneBillableL97.405Non-pressure chronic ulcer of unspecified heel and midfoot with muscle involvement without evidence of necrosisBillableL97.406Non-pressure chronic ulcer of unspecified heel and midfoot with bone involvement without evidence of necrosisBillableL97.408Non-pressure chronic ulcer of unspecified heel and midfoot with other specified severityBillableL97.409Non-pressure chronic ulcer of unspecified heel and midfoot with unspecified severityBillableL97.41Non-pressure chronic ulcer of right heel and midfootNon-BillableL97.411Non-pressure chronic ulcer of right heel and midfoot limited to breakdown of skinBillableL97.412Non-pressure chronic ulcer of right heel and midfoot with fat layer exposedBillableL97.413Non-pressure chronic ulcer of right heel and midfoot with necrosis of muscleBillableL97.414Non-pressure chronic ulcer of right heel and midfoot with necrosis of boneBillableL97.415Non-pressure chronic ulcer of right heel and midfoot with muscle involvement without evidence of necrosisBillableL97.416Non-pressure chronic ulcer of right heel and midfoot with bone involvement without evidence of necrosisBillableL97.418Non-pressure chronic ulcer of right heel and midfoot with other specified severityBillableL97.419Non-pressure chronic ulcer of right heel and midfoot with unspecified severityBillableL97.42Non-pressure chronic ulcer of left heel and midfootNon-BillableL97.421Non-pressure chronic ulcer of left heel and midfoot limited to breakdown of skinBillableL97.422Non-pressure chronic ulcer of left heel and midfoot with fat layer exposedBillableL97.423Non-pressure chronic ulcer of left heel and midfoot with necrosis of muscleBillableL97.424Non-pressure chronic ulcer of left heel and midfoot with necrosis of boneBillableL97.425Non-pressure chronic ulcer of left heel and midfoot with muscle involvement without evidence of necrosisBillableL97.426Non-pressure chronic ulcer of left heel and midfoot with bone involvement without evidence of necrosisBillableL97.428Non-pressure chronic ulcer of left heel and midfoot with other specified severityBillableL97.429Non-pressure chronic ulcer of left heel and midfoot with unspecified severityBillableL97.5Non-pressure chronic ulcer of other part of footNon-BillableL97.50Non-pressure chronic ulcer of other part of unspecified footNon-BillableL97.501Non-pressure chronic ulcer of other part of unspecified foot limited to breakdown of skinBillableL97.502Non-pressure chronic ulcer of other part of unspecified foot with fat layer exposedBillableL97.503Non-pressure chronic ulcer of other part of unspecified foot with necrosis of muscleBillableL97.504Non-pressure chronic ulcer of other part of unspecified foot with necrosis of boneBillableL97.505Non-pressure chronic ulcer of other part of unspecified foot with muscle involvement without evidence of necrosisBillableL97.506Non-pressure chronic ulcer of other part of unspecified foot with bone involvement without evidence of necrosisBillableL97.508Non-pressure chronic ulcer of other part of unspecified foot with other specified severityBillableL97.509Non-pressure chronic ulcer of other part of unspecified foot with unspecified severityBillableL97.51Non-pressure chronic ulcer of other part of right footNon-BillableL97.511Non-pressure chronic ulcer of other part of right foot limited to breakdown of skinBillableL97.512Non-pressure chronic ulcer of other part of right foot with fat layer exposedBillableL97.513Non-pressure chronic ulcer of other part of right foot with necrosis of muscleBillableL97.514Non-pressure chronic ulcer of other part of right foot with necrosis of boneBillableL97.515Non-pressure chronic ulcer of other part of right foot with muscle involvement without evidence of necrosisBillableL97.516Non-pressure chronic ulcer of other part of right foot with bone involvement without evidence of necrosisBillableL97.518Non-pressure chronic ulcer of other part of right foot with other specified severityBillableL97.519Non-pressure chronic ulcer of other part of right foot with unspecified severityBillableL97.52Non-pressure chronic ulcer of other part of left footNon-BillableL97.521Non-pressure chronic ulcer of other part of left foot limited to breakdown of skinBillableL97.522Non-pressure chronic ulcer of other part of left foot with fat layer exposedBillableL97.523Non-pressure chronic ulcer of other part of left foot with necrosis of muscleBillableL97.524Non-pressure chronic ulcer of other part of left foot with necrosis of boneBillableL97.525Non-pressure chronic ulcer of other part of left foot with muscle involvement without evidence of necrosisBillableL97.526Non-pressure chronic ulcer of other part of left foot with bone involvement without evidence of necrosisBillableL97.528Non-pressure chronic ulcer of other part of left foot with other specified severityBillableL97.529Non-pressure chronic ulcer of other part of left foot with unspecified severityBillableL97.8Non-pressure chronic ulcer of other part of lower legNon-BillableL97.80Non-pressure chronic ulcer of other part of unspecified lower legNon-BillableL97.801Non-pressure chronic ulcer of other part of unspecified lower leg limited to breakdown of skinBillableL97.802Non-pressure chronic ulcer of other part of unspecified lower leg with fat layer exposedBillableL97.803Non-pressure chronic ulcer of other part of unspecified lower leg with necrosis of muscleBillableL97.804Non-pressure chronic ulcer of other part of unspecified lower leg with necrosis of boneBillableL97.805Non-pressure chronic ulcer of other part of unspecified lower leg with muscle involvement without evidence of necrosisBillableL97.806Non-pressure chronic ulcer of other part of unspecified lower leg with bone involvement without evidence of necrosisBillableL97.808Non-pressure chronic ulcer of other part of unspecified lower leg with other specified severityBillableL97.809Non-pressure chronic ulcer of other part of unspecified lower leg with unspecified severityBillableL97.81Non-pressure chronic ulcer of other part of right lower legNon-BillableL97.811Non-pressure chronic ulcer of other part of right lower leg limited to breakdown of skinBillableL97.812Non-pressure chronic ulcer of other part of right lower leg with fat layer exposedBillableL97.813Non-pressure chronic ulcer of other part of right lower leg with necrosis of muscleBillableL97.814Non-pressure chronic ulcer of other part of right lower leg with necrosis of boneBillableL97.815Non-pressure chronic ulcer of other part of right lower leg with muscle involvement without evidence of necrosisBillableL97.816Non-pressure chronic ulcer of other part of right lower leg with bone involvement without evidence of necrosisBillableL97.818Non-pressure chronic ulcer of other part of right lower leg with other specified severityBillableL97.819Non-pressure chronic ulcer of other part of right lower leg with unspecified severityBillableL97.82Non-pressure chronic ulcer of other part of left lower legNon-BillableL97.821Non-pressure chronic ulcer of other part of left lower leg limited to breakdown of skinBillableL97.822Non-pressure chronic ulcer of other part of left lower leg with fat layer exposedBillableL97.823Non-pressure chronic ulcer of other part of left lower leg with necrosis of muscleBillableL97.824Non-pressure chronic ulcer of other part of left lower leg with necrosis of boneBillableL97.825Non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosisBillableL97.826Non-pressure chronic ulcer of other part of left lower leg with bone involvement without evidence of necrosisBillableL97.828Non-pressure chronic ulcer of other part of left lower leg with other specified severityBillableL97.829Non-pressure chronic ulcer of other part of left lower leg with unspecified severityBillableL97.9Non-pressure chronic ulcer of unspecified part of lower legNon-BillableL97.90Non-pressure chronic ulcer of unspecified part of unspecified lower legNon-BillableL97.901Non-pressure chronic ulcer of unspecified part of unspecified lower leg limited to breakdown of skinBillableL97.902Non-pressure chronic ulcer of unspecified part of unspecified lower leg with fat layer exposedBillableL97.903Non-pressure chronic ulcer of unspecified part of unspecified lower leg with necrosis of muscleBillableL97.904Non-pressure chronic ulcer of unspecified part of unspecified lower leg with necrosis of boneBillableL97.905Non-pressure chronic ulcer of unspecified part of unspecified lower leg with muscle involvement without evidence of necrosisBillableL97.906Non-pressure chronic ulcer of unspecified part of unspecified lower leg with bone involvement without evidence of necrosisBillableL97.908Non-pressure chronic ulcer of unspecified part of unspecified lower leg with other specified severityBillableL97.909Non-pressure chronic ulcer of unspecified part of unspecified lower leg with unspecified severityBillableL97.91Non-pressure chronic ulcer of unspecified part of right lower legNon-BillableL97.911Non-pressure chronic ulcer of unspecified part of right lower leg limited to breakdown of skinBillableL97.912Non-pressure chronic ulcer of unspecified part of right lower leg with fat layer exposedBillableL97.913Non-pressure chronic ulcer of unspecified part of right lower leg with necrosis of muscleBillableL97.914Non-pressure chronic ulcer of unspecified part of right lower leg with necrosis of boneBillableL97.915Non-pressure chronic ulcer of unspecified part of right lower leg with muscle involvement without evidence of necrosisBillableL97.916Non-pressure chronic ulcer of unspecified part of right lower leg with bone involvement without evidence of necrosisBillableL97.918Non-pressure chronic ulcer of unspecified part of right lower leg with other specified severityBillableL97.919Non-pressure chronic ulcer of unspecified part of right lower leg with unspecified severityBillableL97.92Non-pressure chronic ulcer of unspecified part of left lower legNon-BillableL97.921Non-pressure chronic ulcer of unspecified part of left lower leg limited to breakdown of skinBillableL97.922Non-pressure chronic ulcer of unspecified part of left lower leg with fat layer exposedBillableL97.923Non-pressure chronic ulcer of unspecified part of left lower leg with necrosis of muscleBillableL97.924Non-pressure chronic ulcer of unspecified part of left lower leg with necrosis of boneBillableL97.925Non-pressure chronic ulcer of unspecified part of left lower leg with muscle involvement without evidence of necrosisBillableL97.926Non-pressure chronic ulcer of unspecified part of left lower leg with bone involvement without evidence of necrosisBillableL97.928Non-pressure chronic ulcer of unspecified part of left lower leg with other specified severityBillableL97.929Non-pressure chronic ulcer of unspecified part of left lower leg with unspecified severityBillable
Related Codes

Frequently Asked Questions

Is L97 a billable ICD-10-CM code?

No, L97 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does L97 mean?

L97 is the ICD-10-CM diagnosis code for "Non-pressure chronic ulcer of lower limb, not elsewhere classified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is L97 in?

L97 is located in Section L80-L99 — "Other disorders of the skin and subcutaneous tissue" within Chapter 12 of the ICD-10-CM Tabular List.

What are the sub-codes of L97?

L97 has 7 sub-code(s) that provide more specific detail: L97.1, L97.2, L97.3, L97.4, L97.5 and more.

When should I use L97?

Use L97 when the patients documented diagnosis matches "Non-pressure chronic ulcer of lower limb, not elsewhere classified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Non-pressure chronic ulcer of lower limb, not elsewhere classified?

The ICD-10-CM code for Non-pressure chronic ulcer of lower limb, not elsewhere classified is L97.

Can L97 be used for primary diagnosis?

No, L97 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is L97 in?

L97 is in Chapter 12 of the ICD-10-CM Tabular List.

Is L97 valid for 2026?

Yes, L97 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousL95.9Vasculitis limited to the skin, unspecifiedNext →L97.1Non-pressure chronic ulcer of thigh
Code Details
L97
Non-pressure chronic ulcer of lower limb, not elsewhere classified
Non-Billable / Non-Specific Code
12 — Diseases of the skin and subcutaneous tissue (L00-L99)
L80-L99 — Other disorders of the skin and subcutaneous tissue
2026 ICD-10-CM