Other disorders of skin and subcutaneous tissue, not elsewhere classified
In Other disorders of the skin and subcutaneous tissue (L80-L99), chapter 12: Diseases of the Skin and Subcutaneous Tissue
145 billable codes under L98: 80 are a CC; 136 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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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.
Covers assigning pressure ulcer codes by site and stage, including unstageable, healing, healed, and progressing ulcers, and coding healing or progressing non-pressure chronic ulcers.
- Pressure ulcer stage codes (page 58)
- Non-Pressure Chronic Ulcers (page 60)
All codes under L98
L98 can't be used on a claim. Pick a billable code below; grey headings group them.
- L98.0Pyogenic granuloma
- L98.1Factitial dermatitis
- L98.2Febrile neutrophilic dermatosis [Sweet]
- L98.3Eosinophilic cellulitis [Wells]
- L98.4Non-pressure chronic ulcer of skin, not elsewhere classified
- L98.41Non-pressure chronic ulcer of buttock
- L98.411Non-pressure chronic ulcer of buttock limited to breakdown of skin
- L98.412Non-pressure chronic ulcer of buttock with fat layer exposed
- L98.413Non-pressure chronic ulcer of buttock with necrosis of muscle
- L98.414Non-pressure chronic ulcer of buttock with necrosis of bone
- L98.415Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosis
- L98.416Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosis
- L98.418Non-pressure chronic ulcer of buttock with other specified severity
- L98.419Non-pressure chronic ulcer of buttock with unspecified severity
- L98.42Non-pressure chronic ulcer of back
- L98.421Non-pressure chronic ulcer of back limited to breakdown of skin
- L98.422Non-pressure chronic ulcer of back with fat layer exposed
- L98.423Non-pressure chronic ulcer of back with necrosis of muscle
- L98.424Non-pressure chronic ulcer of back with necrosis of bone
- L98.425Non-pressure chronic ulcer of back with muscle involvement without evidence of necrosis
- L98.426Non-pressure chronic ulcer of back with bone involvement without evidence of necrosis
- L98.428Non-pressure chronic ulcer of back with other specified severity
- L98.429Non-pressure chronic ulcer of back with unspecified severity
- L98.43Non-pressure chronic ulcer of abdomen
- L98.431Non-pressure chronic ulcer of abdomen limited to breakdown of skin
- L98.432Non-pressure chronic ulcer of abdomen with fat layer exposed
- L98.433Non-pressure chronic ulcer of abdomen with necrosis of muscle
- L98.434Non-pressure chronic ulcer of abdomen with necrosis of bone
- L98.435Non-pressure chronic ulcer of abdomen with muscle involvement without evidence of necrosis
- L98.436Non-pressure chronic ulcer of abdomen with bone involvement without evidence of necrosis
- L98.438Non-pressure chronic ulcer of abdomen with other specified severity
- L98.439Non-pressure chronic ulcer of abdomen with unspecified severity
- L98.44Non-pressure chronic ulcer of chest
- L98.441Non-pressure chronic ulcer of chest limited to breakdown of skin
- L98.442Non-pressure chronic ulcer of chest with fat layer exposed
- L98.443Non-pressure chronic ulcer of chest with necrosis of muscle
- L98.444Non-pressure chronic ulcer of chest with necrosis of bone
- L98.445Non-pressure chronic ulcer of chest with muscle involvement without evidence of necrosis
- L98.446Non-pressure chronic ulcer of chest with bone involvement without evidence of necrosis
- L98.448Non-pressure chronic ulcer of chest with other specified severity
- L98.449Non-pressure chronic ulcer of chest with unspecified severity
- L98.45Non-pressure chronic ulcer of neck
- L98.451Non-pressure chronic ulcer of neck limited to breakdown of skin
- L98.452Non-pressure chronic ulcer of neck with fat layer exposed
- L98.453Non-pressure chronic ulcer of neck with necrosis of muscle
- L98.454Non-pressure chronic ulcer of neck with necrosis of bone
- L98.455Non-pressure chronic ulcer of neck with muscle involvement without evidence of necrosis
- L98.456Non-pressure chronic ulcer of neck with bone involvement without evidence of necrosis
- L98.458Non-pressure chronic ulcer of neck with other specified severity
- L98.459Non-pressure chronic ulcer of neck with unspecified severity
- L98.46Non-pressure chronic ulcer of face
- L98.461Non-pressure chronic ulcer of face limited to breakdown of skin
- L98.462Non-pressure chronic ulcer of face with fat layer exposed
- L98.463Non-pressure chronic ulcer of face with necrosis of muscle
- L98.464Non-pressure chronic ulcer of face with necrosis of bone
- L98.465Non-pressure chronic ulcer of face with muscle involvement without evidence of necrosis
- L98.466Non-pressure chronic ulcer of face with bone involvement without evidence of necrosis
- L98.468Non-pressure chronic ulcer of face with other specified severity
- L98.469Non-pressure chronic ulcer of face with unspecified severity
- L98.47Non-pressure chronic ulcer of groin
- L98.471Non-pressure chronic ulcer of groin limited to breakdown of skin
- L98.472Non-pressure chronic ulcer of groin with fat layer exposed
- L98.473Non-pressure chronic ulcer of groin with necrosis of muscle
- L98.474Non-pressure chronic ulcer of groin with necrosis of bone
- L98.475Non-pressure chronic ulcer of groin with muscle involvement without evidence of necrosis
- L98.476Non-pressure chronic ulcer of groin with bone involvement without evidence of necrosis
- L98.478Non-pressure chronic ulcer of groin with other specified severity
- L98.479Non-pressure chronic ulcer of groin with unspecified severity
- L98.49Non-pressure chronic ulcer of skin of other sites
- L98.491Non-pressure chronic ulcer of skin of other sites limited to breakdown of skin
- L98.492Non-pressure chronic ulcer of skin of other sites with fat layer exposed
- L98.493Non-pressure chronic ulcer of skin of other sites with necrosis of muscle
- L98.494Non-pressure chronic ulcer of skin of other sites with necrosis of bone
- L98.495Non-pressure chronic ulcer of skin of other sites with muscle involvement without evidence of necrosis
- L98.496Non-pressure chronic ulcer of skin of other sites with bone involvement without evidence of necrosis
- L98.498Non-pressure chronic ulcer of skin of other sites with other specified severity
- L98.499Non-pressure chronic ulcer of skin of other sites with unspecified severity
- L98.5Mucinosis of the skin
- L98.6Other infiltrative disorders of the skin and subcutaneous tissue
- L98.7Excessive and redundant skin and subcutaneous tissue
- L98.8Other specified disorders of the skin and subcutaneous tissue
- L98.9Disorder of the skin and subcutaneous tissue, unspecified
- L98.ANon-pressure chronic ulcer of upper limb, not elsewhere classified
- L98.A1Non-pressure chronic ulcer of upper arm
- L98.A11Non-pressure chronic ulcer of right upper arm
- L98.A111Non-pressure chronic ulcer of right upper arm limited to breakdown of skin
- L98.A112Non-pressure chronic ulcer of right upper arm with fat layer exposed
- L98.A113Non-pressure chronic ulcer of right upper arm with necrosis of muscle
- L98.A114Non-pressure chronic ulcer of right upper arm with necrosis of bone
- L98.A115Non-pressure chronic ulcer of right upper arm with muscle involvement without evidence of necrosis
- L98.A116Non-pressure chronic ulcer of right upper arm with bone involvement without evidence of necrosis
- L98.A118Non-pressure chronic ulcer of right upper arm with other specified severity
- L98.A119Non-pressure chronic ulcer of right upper arm with unspecified severity
- L98.A12Non-pressure chronic ulcer of left upper arm
- L98.A121Non-pressure chronic ulcer of left upper arm limited to breakdown of skin
- L98.A122Non-pressure chronic ulcer of left upper arm with fat layer exposed
- L98.A123Non-pressure chronic ulcer of left upper arm with necrosis of muscle
- L98.A124Non-pressure chronic ulcer of left upper arm with necrosis of bone
- L98.A125Non-pressure chronic ulcer of left upper arm with muscle involvement without evidence of necrosis
- L98.A126Non-pressure chronic ulcer of left upper arm with bone involvement without evidence of necrosis
- L98.A128Non-pressure chronic ulcer of left upper arm with other specified severity
- L98.A129Non-pressure chronic ulcer of left upper arm with unspecified severity
- L98.A19Non-pressure chronic ulcer of unspecified upper arm
- L98.A191Non-pressure chronic ulcer of unspecified upper arm limited to breakdown of skin
- L98.A192Non-pressure chronic ulcer of unspecified upper arm with fat layer exposed
- L98.A193Non-pressure chronic ulcer of unspecified upper arm with necrosis of muscle
- L98.A194Non-pressure chronic ulcer of unspecified upper arm with necrosis of bone
- L98.A195Non-pressure chronic ulcer of unspecified upper arm with muscle involvement without evidence of necrosis
- L98.A196Non-pressure chronic ulcer of unspecified upper arm with bone involvement without evidence of necrosis
- L98.A198Non-pressure chronic ulcer of unspecified upper arm with other specified severity
- L98.A199Non-pressure chronic ulcer of unspecified upper arm with unspecified severity
- L98.A2Non-pressure chronic ulcer of forearm
- L98.A21Non-pressure chronic ulcer of right forearm
- L98.A211Non-pressure chronic ulcer of right forearm limited to breakdown of skin
- L98.A212Non-pressure chronic ulcer of right forearm with fat layer exposed
- L98.A213Non-pressure chronic ulcer of right forearm with necrosis of muscle
- L98.A214Non-pressure chronic ulcer of right forearm with necrosis of bone
- L98.A215Non-pressure chronic ulcer of right forearm with muscle involvement without evidence of necrosis
- L98.A216Non-pressure chronic ulcer of right forearm with bone involvement without evidence of necrosis
- L98.A218Non-pressure chronic ulcer of right forearm with other specified severity
- L98.A219Non-pressure chronic ulcer of right forearm with unspecified severity
- L98.A22Non-pressure chronic ulcer of left forearm
- L98.A221Non-pressure chronic ulcer of left forearm limited to breakdown of skin
- L98.A222Non-pressure chronic ulcer of left forearm with fat layer exposed
- L98.A223Non-pressure chronic ulcer of left forearm with necrosis of muscle
- L98.A224Non-pressure chronic ulcer of left forearm with necrosis of bone
- L98.A225Non-pressure chronic ulcer of left forearm with muscle involvement without evidence of necrosis
- L98.A226Non-pressure chronic ulcer of left forearm with bone involvement without evidence of necrosis
- L98.A228Non-pressure chronic ulcer of left forearm with other specified severity
- L98.A229Non-pressure chronic ulcer of left forearm with unspecified severity
- L98.A29Non-pressure chronic ulcer of unspecified forearm
- L98.A291Non-pressure chronic ulcer of unspecified forearm limited to breakdown of skin
- L98.A292Non-pressure chronic ulcer of unspecified forearm with fat layer exposed
- L98.A293Non-pressure chronic ulcer of unspecified forearm with necrosis of muscle
- L98.A294Non-pressure chronic ulcer of unspecified forearm with necrosis of bone
- L98.A295Non-pressure chronic ulcer of unspecified forearm with muscle involvement without evidence of necrosis
- L98.A296Non-pressure chronic ulcer of unspecified forearm with bone involvement without evidence of necrosis
- L98.A298Non-pressure chronic ulcer of unspecified forearm with other specified severity
- L98.A299Non-pressure chronic ulcer of unspecified forearm with unspecified severity
- L98.A3Non-pressure chronic ulcer of hand
- L98.A31Non-pressure chronic ulcer of right hand
- L98.A311Non-pressure chronic ulcer of right hand limited to breakdown of skin
- L98.A312Non-pressure chronic ulcer of right hand with fat layer exposed
- L98.A313Non-pressure chronic ulcer of right hand with necrosis of muscle
- L98.A314Non-pressure chronic ulcer of right hand with necrosis of bone
- L98.A315Non-pressure chronic ulcer of right hand with muscle involvement without evidence of necrosis
- L98.A316Non-pressure chronic ulcer of right hand with bone involvement without evidence of necrosis
- L98.A318Non-pressure chronic ulcer of right hand with other specified severity
- L98.A319Non-pressure chronic ulcer of right hand with unspecified severity
- L98.A32Non-pressure chronic ulcer of left hand
- L98.A321Non-pressure chronic ulcer of left hand limited to breakdown of skin
- L98.A322Non-pressure chronic ulcer of left hand with fat layer exposed
- L98.A323Non-pressure chronic ulcer of left hand with necrosis of muscle
- L98.A324Non-pressure chronic ulcer of left hand with necrosis of bone
- L98.A325Non-pressure chronic ulcer of left hand with muscle involvement without evidence of necrosis
- L98.A326Non-pressure chronic ulcer of left hand with bone involvement without evidence of necrosis
- L98.A328Non-pressure chronic ulcer of left hand with other specified severity
- L98.A329Non-pressure chronic ulcer of left hand with unspecified severity
- L98.A39Non-pressure chronic ulcer of unspecified hand
- L98.A391Non-pressure chronic ulcer of unspecified hand limited to breakdown of skin
- L98.A392Non-pressure chronic ulcer of unspecified hand with fat layer exposed
- L98.A393Non-pressure chronic ulcer of unspecified hand with necrosis of muscle
- L98.A394Non-pressure chronic ulcer of unspecified hand with necrosis of bone
- L98.A395Non-pressure chronic ulcer of unspecified hand with muscle involvement without evidence of necrosis
- L98.A396Non-pressure chronic ulcer of unspecified hand with bone involvement without evidence of necrosis
- L98.A398Non-pressure chronic ulcer of unspecified hand with other specified severity
- L98.A399Non-pressure chronic ulcer of unspecified hand with unspecified severity
L98 MS-DRGs
As the principal diagnosis, the billable codes under L98 group to these 12 MS-DRGs (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 573 Skin Graft for Skin Ulcer or Cellulitis with MCC (137 of 145 codes)
- DRG 574 Skin Graft for Skin Ulcer or Cellulitis with CC (137 of 145 codes)
- DRG 575 Skin Graft for Skin Ulcer or Cellulitis without CC/MCC (137 of 145 codes)
- DRG 592 Skin Ulcers with MCC (136 of 145 codes)
- DRG 593 Skin Ulcers with CC (136 of 145 codes)
- DRG 594 Skin Ulcers without CC/MCC (136 of 145 codes)
- DRG 606 Minor Skin Disorders with MCC (7 of 145 codes)
- DRG 607 Minor Skin Disorders without MCC (7 of 145 codes)
- DRG 602 Cellulitis with MCC (2 of 145 codes)
- DRG 603 Cellulitis without MCC (2 of 145 codes)
- DRG 791 Prematurity with Major Problems (1 of 145 codes)
- DRG 793 Full Term Neonate with Major Problems (1 of 145 codes)
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 MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.
