Is R23.4 a billable ICD-10-CM code?

Yes. R23.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does R23.4 sit in the tabular list?

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving the skin and subcutaneous tissue (R20-R23).

What cannot be coded together with R23.4?

R23.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

R23.4

R23.4 — Changes in skin texture

Billable / specific codeICD-10-CM

R23.4 is a billable, specific ICD-10-CM code for changes in skin texture. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

epidermal thickening NOS (L85.9)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Desquamation of skin
Induration of skin
Scaling of skin

Risk adjustment

R23.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

R23.4 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A53057Billing and Coding: Home Health Occupational Therapy
A57636Billing and Coding: Duplex Scanning

How R23.4 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to R23.4.

Crusts
Desquamation, skin
Inelasticity, skin
Parakeratosis
Scabs
Scales
Scaling, skin
Fissure, fissured›skin
Induration, indurated›skin
Loss›elasticity, skin
Thickening›skin
Change›skin›texture

Related codes at this level

Codes that share R23. If R23.4 is not quite right, the correct code is usually one of these.

Questions about R23.4

Is R23.4 a billable ICD-10-CM code?: Yes. R23.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does R23.4 sit in the tabular list?: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving the skin and subcutaneous tissue (R20-R23).
What cannot be coded together with R23.4?: R23.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.