S90.42
Non-billableBlister (nonthermal) of toe
Blister (nonthermal) of toe
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
- code to identify any retained foreign body, if applicable (Z18.-)
Child Codes (6)
Also Known As / Clinical Terms
Frequently Asked Questions
What is the ICD-10 code for blister (nonthermal) of toe?
The ICD-10-CM code for blister (nonthermal) of toe is S90.42. The full clinical description is "Blister (nonthermal) of toe". S90.42 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code S90.42 mean?
ICD-10-CM code S90.42 represents "Blister (nonthermal) of toe". It is classified under Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes and is a non-billable header code. Use a more specific child code for billing purposes.
Is S90.42 a billable code?
No, S90.42 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under S90.42.
What chapter is S90.42 in?
S90.42 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).
What codes cannot be used with S90.42?
S90.42 has Excludes1 notes indicating codes that cannot be used together with it, including: birth trauma (P10-P15); obstetric trauma (O70-O71).
What are the subcategories under S90.42?
S90.42 has 6 child codes, including: S90.421 (Blister (nonthermal), right great toe), S90.422 (Blister (nonthermal), left great toe), S90.423 (Blister (nonthermal), unspecified great toe), S90.424 (Blister (nonthermal), right lesser toe(s)), and 2 more.
Are additional codes required with S90.42?
Yes, when using S90.42 you should also code: code to identify any retained foreign body, if applicable (Z18.-).
What are the UMLS CUIs for S90.42?
S90.42 is linked to 1 UMLS Concept Unique Identifier: C2866158. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.