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T20.7

Non-billable

Corrosion of third degree of head, face, and neck

Corrosion of third degree of head, face, and neck

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

T20-T25

Parent Code

T20

Child Codes

9

Coding Notes

Includes

Conditions included under this code

  • burns and corrosions of first degree [erythema]
  • burns and corrosions of second degree [blisters][epidermal loss]
  • burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]

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

  • burn and corrosion of ear drum (T28.41, T28.91)
  • burn and corrosion of eye and adnexa (T26.-)
  • burn and corrosion of mouth and pharynx (T28.0)

Code First

The underlying condition must be sequenced before this code

  • (T51-T65) to identify chemical and intent

Use Additional Code

Additional codes that should follow this code

  • code to identify any retained foreign body, if applicable (Z18.-)
  • code from category T31 or T32 to identify extent of body surface involved
  • external cause code to identify place (Y92)

Child Codes (9)

T20.70

Corrosion of third degree of head, face, and neck, unsp site

T20.71

Corrosion of third degree of ear [any part, except ear drum]

T20.72

Corrosion of third degree of lip(s)

T20.73

Corrosion of third degree of chin

T20.74

Corrosion of third degree of nose (septum)

T20.75

Corrosion of third degree of scalp [any part]

T20.76

Corrosion of third degree of forehead and cheek

T20.77

Corrosion of third degree of neck

T20.79

Corrosion of 3rd deg mu sites of head, face, and neck

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code T20.7?

ICD-10-CM code T20.7 represents "Corrosion of third degree of head, face, and neck". It is a non-billable header code — use a more specific child code for billing purposes.

Is T20.7 a billable code?

No, T20.7 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 9 child codes under T20.7.

What chapter is T20.7 in?

T20.7 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).

What codes cannot be used with T20.7?

T20.7 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 T20.7?

T20.7 has 9 child codes, including: T20.70 (Corrosion of third degree of head, face, and neck, unsp site), T20.71 (Corrosion of third degree of ear [any part, except ear drum]), T20.72 (Corrosion of third degree of lip(s)), T20.73 (Corrosion of third degree of chin), and 5 more.

Are additional codes required with T20.7?

Yes, when using T20.7 you should also code: code to identify any retained foreign body, if applicable (Z18.-); code from category T31 or T32 to identify extent of body surface involved; external cause code to identify place (Y92).

What are the UMLS CUIs for T20.7?

T20.7 is linked to 1 UMLS Concept Unique Identifier: C2870662. 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.