T23.4 Corrosion of unspecified degree of wrist and hand

Non-billable header with 9 child codes.

Code first

• (T51-T65) to identify chemical and intent

Use additional code

• external cause code to identify place (Y92)

Applies from T23 Burn and corrosion of wrist and hand

7th character note

• The appropriate 7th character is to be added to each code from category T23

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Codes under T23.4

• T23.40 Corrosion of unspecified degree of hand, unspecified site
• T23.41 Corrosion of unspecified degree of thumb (nail)
• T23.42 Corrosion of unspecified degree of single finger (nail) except thumb
• T23.43 Corrosion of unspecified degree of multiple fingers (nail), not including thumb
• T23.44 Corrosion of unspecified degree of multiple fingers (nail), including thumb
• T23.45 Corrosion of unspecified degree of palm
• T23.46 Corrosion of unspecified degree of back of hand
• T23.47 Corrosion of unspecified degree of wrist
• T23.49 Corrosion of unspecified degree of multiple sites of wrist and hand

Code annotations containing back-references to T23.4

Back-references to T23

• Type 2 Excludes: T22 Burn and corrosion of shoulder and upper limb, except wrist and hand ("burn and corrosion of wrist and hand (T23.-)")
• Type 1 Excludes: T66 Radiation sickness, unspecified ("burns (T20-T31)")
• Type 2 Excludes: T67 Effects of heat and light ("burns (T20-T31)")
• Type 2 Excludes: T75 Other and unspecified effects of other external causes ("burns (electric) (T20-T31)")

Nearby codes

• T23.392S Burn of third degree of multiple sites of left wrist and hand, sequela
• T23.399 Burn of third degree of multiple sites of unspecified wrist and hand
• T23.399A Burn of third degree of multiple sites of unspecified wrist and hand, initial encounter
• T23.399D Burn of third degree of multiple sites of unspecified wrist and hand, subsequent encounter
• T23.399S Burn of third degree of multiple sites of unspecified wrist and hand, sequela
• T23.4 Corrosion of unspecified degree of wrist and hand (this code)
• T23.40 Corrosion of unspecified degree of hand, unspecified site
• T23.401 Corrosion of unspecified degree of right hand, unspecified site
• T23.401A Corrosion of unspecified degree of right hand, unspecified site, initial encounter
• T23.401D Corrosion of unspecified degree of right hand, unspecified site, subsequent encounter
• T23.401S Corrosion of unspecified degree of right hand, unspecified site, sequela