T22.40 — Corrosion of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site
T22.40 is a non-billable header ICD-10-CM code for corrosion of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T22
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
T22.40 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.
How T22.40 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 T22.40.
- Corrosion›upper limb(axilla) (scapular region)
Code to one of these instead T22.40
3 child codes. Green means billable.
- T22.40XACorrosion of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site, initial encounter
- T22.40XDCorrosion of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site, subsequent encounter
- T22.40XSCorrosion of unspecified degree of shoulder and upper limb, except wrist and hand, unspecified site, sequela
Related codes at this level
Codes that share T22.4. If T22.40 is not quite right, the correct code is usually one of these.
- T22.41Corrosion of unspecified degree of forearm
- T22.42Corrosion of unspecified degree of elbow
- T22.43Corrosion of unspecified degree of upper arm
- T22.44Corrosion of unspecified degree of axilla
- T22.45Corrosion of unspecified degree of shoulder
- T22.46Corrosion of unspecified degree of scapular region
- T22.49Corrosion of unspecified degree of multiple sites of shoulder and upper limb, except wrist and hand
Questions about T22.40
- Is T22.40 a billable ICD-10-CM code?
- No. T22.40 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T22.40 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions of external body surface, specified by site (T20-T25).