L98.4
Non-Billable

Non-pressure chronic ulcer of skin, not elsewhere classified

Non-Billable / Non-Specific Code

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

ICD-10-CM L98.4 is the diagnosis code for Non-pressure chronic ulcer of skin, 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.

💡 Inclusions
â„šī¸ Excludes2

Coding Guidelines for L98.4

✅ This Code Includes

  • Chronic ulcer of skin NOS
  • Tropical ulcer NOS
  • Ulcer of skin NOS

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

The following conditions are not included in L98.4. If the patient has both, code each condition separately:

  • pressure ulcer (pressure area) (L89.-)
  • gangrene (I96)
  • skin infections (L00-L08)
  • specific infections classified to A00-B99
  • ulcer of lower limb NEC (L97.-)
  • varicose ulcer (I83.0-I83.93)

ICD-10-CM Code Hierarchy

Understanding where L98.4 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 8 entries
L98.41Non-pressure chronic ulcer of buttockNon-BillableL98.411Non-pressure chronic ulcer of buttock limited to breakdown of skinBillableL98.412Non-pressure chronic ulcer of buttock with fat layer exposedBillableL98.413Non-pressure chronic ulcer of buttock with necrosis of muscleBillableL98.414Non-pressure chronic ulcer of buttock with necrosis of boneBillableL98.415Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosisBillableL98.416Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosisBillableL98.418Non-pressure chronic ulcer of buttock with other specified severityBillableL98.419Non-pressure chronic ulcer of buttock with unspecified severityBillableL98.42Non-pressure chronic ulcer of backNon-BillableL98.421Non-pressure chronic ulcer of back limited to breakdown of skinBillableL98.422Non-pressure chronic ulcer of back with fat layer exposedBillableL98.423Non-pressure chronic ulcer of back with necrosis of muscleBillableL98.424Non-pressure chronic ulcer of back with necrosis of boneBillableL98.425Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosisBillableL98.426Non-pressure chronic ulcer of back with bone involvement without evidence of necrosisBillableL98.428Non-pressure chronic ulcer of back with other specified severityBillableL98.429Non-pressure chronic ulcer of back with unspecified severityBillableL98.43Non-pressure chronic ulcer of abdomenNon-BillableL98.431Non-pressure chronic ulcer of abdomen limited to breakdown of skinBillableL98.432Non-pressure chronic ulcer of abdomen with fat layer exposedBillableL98.433Non-pressure chronic ulcer of abdomen with necrosis of muscleBillableL98.434Non-pressure chronic ulcer of abdomen with necrosis of boneBillableL98.435Non-pressure chronic ulcer of abdomen with muscle involvement without evidence of necrosisBillableL98.436Non-pressure chronic ulcer of abdomen with bone involvement without evidence of necrosisBillableL98.438Non-pressure chronic ulcer of abdomen with other specified severityBillableL98.439Non-pressure chronic ulcer of abdomen with unspecified severityBillableL98.44Non-pressure chronic ulcer of chestNon-BillableL98.441Non-pressure chronic ulcer of chest limited to breakdown of skinBillableL98.442Non-pressure chronic ulcer of chest with fat layer exposedBillableL98.443Non-pressure chronic ulcer of chest with necrosis of muscleBillableL98.444Non-pressure chronic ulcer of chest with necrosis of boneBillableL98.445Non-pressure chronic ulcer of chest with muscle involvement without evidence of necrosisBillableL98.446Non-pressure chronic ulcer of chest with bone involvement without evidence of necrosisBillableL98.448Non-pressure chronic ulcer of chest with other specified severityBillableL98.449Non-pressure chronic ulcer of chest with unspecified severityBillableL98.45Non-pressure chronic ulcer of neckNon-BillableL98.451Non-pressure chronic ulcer of neck limited to breakdown of skinBillableL98.452Non-pressure chronic ulcer of neck with fat layer exposedBillableL98.453Non-pressure chronic ulcer of neck with necrosis of muscleBillableL98.454Non-pressure chronic ulcer of neck with necrosis of boneBillableL98.455Non-pressure chronic ulcer of neck with muscle involvement without evidence of necrosisBillableL98.456Non-pressure chronic ulcer of neck with bone involvement without evidence of necrosisBillableL98.458Non-pressure chronic ulcer of neck with other specified severityBillableL98.459Non-pressure chronic ulcer of neck with unspecified severityBillableL98.46Non-pressure chronic ulcer of faceNon-BillableL98.461Non-pressure chronic ulcer of face limited to breakdown of skinBillableL98.462Non-pressure chronic ulcer of face with fat layer exposedBillableL98.463Non-pressure chronic ulcer of face with necrosis of muscleBillableL98.464Non-pressure chronic ulcer of face with necrosis of boneBillableL98.465Non-pressure chronic ulcer of face with muscle involvement without evidence of necrosisBillableL98.466Non-pressure chronic ulcer of face with bone involvement without evidence of necrosisBillableL98.468Non-pressure chronic ulcer of face with other specified severityBillableL98.469Non-pressure chronic ulcer of face with unspecified severityBillableL98.47Non-pressure chronic ulcer of groinNon-BillableL98.471Non-pressure chronic ulcer of groin limited to breakdown of skinBillableL98.472Non-pressure chronic ulcer of groin with fat layer exposedBillableL98.473Non-pressure chronic ulcer of groin with necrosis of muscleBillableL98.474Non-pressure chronic ulcer of groin with necrosis of boneBillableL98.475Non-pressure chronic ulcer of groin with muscle involvement without evidence of necrosisBillableL98.476Non-pressure chronic ulcer of groin with bone involvement without evidence of necrosisBillableL98.478Non-pressure chronic ulcer of groin with other specified severityBillableL98.479Non-pressure chronic ulcer of groin with unspecified severityBillableL98.49Non-pressure chronic ulcer of skin of other sitesNon-BillableL98.491Non-pressure chronic ulcer of skin of other sites limited to breakdown of skinBillableL98.492Non-pressure chronic ulcer of skin of other sites with fat layer exposedBillableL98.493Non-pressure chronic ulcer of skin of other sites with necrosis of muscleBillableL98.494Non-pressure chronic ulcer of skin of other sites with necrosis of boneBillableL98.495Non-pressure chronic ulcer of skin of other sites with muscle involvement without evidence of necrosisBillableL98.496Non-pressure chronic ulcer of skin of other sites with bone involvement without evidence of necrosisBillableL98.498Non-pressure chronic ulcer of skin of other sites with other specified severityBillableL98.499Non-pressure chronic ulcer of skin of other sites with unspecified severityBillable
Related Codes

Frequently Asked Questions

Is L98.4 a billable ICD-10-CM code?

No, L98.4 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does L98.4 mean?

L98.4 is the ICD-10-CM diagnosis code for "Non-pressure chronic ulcer of skin, not elsewhere classified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of L98.4?

The parent code of L98.4 is L98 ("Other disorders of skin and subcutaneous tissue, not elsewhere classified"). L98.4 provides a more specific classification within this category.

What section is L98.4 in?

L98.4 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 L98.4?

L98.4 has 8 sub-code(s) that provide more specific detail: L98.41, L98.42, L98.43, L98.44, L98.45 and more.

When should I use L98.4?

Use L98.4 when the patients documented diagnosis matches "Non-pressure chronic ulcer of skin, 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 skin, not elsewhere classified?

The ICD-10-CM code for Non-pressure chronic ulcer of skin, not elsewhere classified is L98.4.

Can L98.4 be used for primary diagnosis?

No, L98.4 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is L98.4 in?

L98.4 is in Chapter 12 of the ICD-10-CM Tabular List.

Is L98.4 valid for 2026?

Yes, L98.4 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousL98.3Eosinophilic cellulitis [Wells]Next →L98.41Non-pressure chronic ulcer of buttock
Code Details
L98.4
Non-pressure chronic ulcer of skin, 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