ICD-10 Code
International Classification of Diseases, 10th Revision
Aug 24, 2017
L98.4 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Non-pressure chronic ulcer of skin, not elsewhere classified

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Inclusion Term
  • Chronic ulcer of skin NOS
  • Tropical ulcer NOS
  • Ulcer of skin NOS
Excludes2
  • gangrene (I96)
  • pressure ulcer (pressure area) (L89.-)
  • skin infections (L00-L08)
  • specific infections classified to A00-B99
  • ulcer of lower limb NEC (L97.-)
  • varicose ulcer (I83.0-I82.2)

More specific codes for Non-pressure chronic ulcer of skin, not elsewhere classified

  • L98.41 - Non-pressure chronic ulcer of buttock
    • L98.411 - Non-pressure chronic ulcer of buttock limited to breakdown of skin
    • L98.412 - Non-pressure chronic ulcer of buttock with fat layer exposed
    • L98.413 - Non-pressure chronic ulcer of buttock with necrosis of muscle
    • L98.414 - Non-pressure chronic ulcer of buttock with necrosis of bone
    • L98.419 - Non-pressure chronic ulcer of buttock with unspecified severity
  • L98.42 - Non-pressure chronic ulcer of back
    • L98.421 - Non-pressure chronic ulcer of back limited to breakdown of skin
    • L98.422 - Non-pressure chronic ulcer of back with fat layer exposed
    • L98.423 - Non-pressure chronic ulcer of back with necrosis of muscle
    • L98.424 - Non-pressure chronic ulcer of back with necrosis of bone
    • L98.429 - Non-pressure chronic ulcer of back with unspecified severity
  • L98.49 - Non-pressure chronic ulcer of skin of other sites
    • L98.491 - Non-pressure chronic ulcer of skin of other sites limited to breakdown of skin
    • L98.492 - Non-pressure chronic ulcer of skin of other sites with fat layer exposed
    • L98.493 - Non-pressure chronic ulcer of skin of other sites with necrosis of muscle
    • L98.494 - Non-pressure chronic ulcer of skin of other sites with necrosis of bone
    • L98.499 - Non-pressure chronic ulcer of skin of other sites with unspecified severity
See also ICD 10 code for
See the 2017 ICD-10-CM Coding Guidelines.

Questions related to L98.4 Non-pressure chronic ulcer of skin, not elsewhere classified

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.