Is X16 a billable ICD-10-CM code?

No. X16 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does X16 sit in the tabular list?

External causes of morbidity (V00-Y99), in the block Contact with heat and hot substances (X10-X19).

What cannot be coded together with X16?

X16 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

X16

X16 — Contact with hot heating appliances, radiators and pipes

Non-billable headerICD-10-CM

X16 is a non-billable header ICD-10-CM code for contact with hot heating appliances, radiators and pipes. 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 code X16

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

contact with powered appliances (W29.-)
exposure to controlled fire in building or structure due to appliance (X02.8)
exposure to industrial appliances electrical current (W86.1)

Other codes that can never be billed with X16

These codes carry an Excludes1 note pointing at X16. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading X16 alone.

X15Contact with hot household appliances
X17Contact with hot engines, machinery and tools
X17.XXXAContact with hot engines, machinery and tools, initial encounter
X17.XXXDContact with hot engines, machinery and tools, subsequent encounter
X17.XXXSContact with hot engines, machinery and tools, sequela

Risk adjustment

X16 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 X16 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 X16.

Burn, burned, burning›electric blanket
Burn, burned, burning›pipe(hot)
Burn, burned, burning›radiator(hot)
Burn, burned, burning›heating›appliance, radiator or pipe
Burn, burned, burning›hot›heating appliance
Burn, burned, burning›hot›pipe(s)
Burn, burned, burning›hot›radiator
Burn, burned, burning›steam›pipe
Contact›with›pipe, hot
Contact›with›radiator(hot)
Heat›from›electric heating apparatus causing burning
Accident›caused by, due to›steam›pipe

Code to one of these instead X16

3 child codes. Green means billable.

Questions about X16

Is X16 a billable ICD-10-CM code?: No. X16 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does X16 sit in the tabular list?: External causes of morbidity (V00-Y99), in the block Contact with heat and hot substances (X10-X19).
What cannot be coded together with X16?: X16 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.