R20.1 – Hypoesthesia of skin

ICD-10-CM 2027 diagnosis code · Symptoms and signs involving the skin and subcutaneous tissue

Billable code

ICD-10-CM code R20.1

Code: R20.1 (claims format: R201)
Description: Hypoesthesia of skin
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: R20-R23 Symptoms and signs involving the skin and subcutaneous tissue
Parent codes: R20

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

R20 – Disturbances of skin sensation

Excludes1 (not coded here):

dissociative anesthesia and sensory loss (F44.6)
psychogenic disturbances (F45.8)

Block R20-R23

Excludes2 (not included here):

symptoms relating to breast (N64.4-N64.5)

Index terms for R20.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in R20

R20.0 – Anesthesia of skinBillable
R20.2 – Paresthesia of skinBillable
R20.3 – HyperesthesiaBillable
R20.8 – Other disturbances of skin sensationBillable
R20.9 – Unspecified disturbances of skin sensationBillable

Frequently asked questions

What is ICD-10 code R20.1?

R20.1 is the ICD-10-CM code for hypoesthesia of skin, in the block R20-R23 (Symptoms and signs involving the skin and subcutaneous tissue).

Is R20.1 a billable code?

Yes. R20.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does R20.1 belong to?

It belongs to category R20 – Disturbances of skin sensation.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.