MCMCB Pro
X34.XXXD

X34.XXXDEarthquake, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

X34.XXXD is a billable, specific ICD-10-CM code for earthquake, subsequent encounter. It is valid for submission on a claim.

7th character "D" — subsequent encounter

The appropriate 7th character is to be added to code X34

A
initial encounter
D
subsequent encounter
S
sequela

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • tidal wave (tsunami) due to earthquake (X37.41)

Risk adjustment

X34.XXXD 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.

Related codes at this level

Codes that share X34. If X34.XXXD is not quite right, the correct code is usually one of these.

Questions about X34.XXXD

Is X34.XXXD a billable ICD-10-CM code?
Yes. X34.XXXD is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does X34.XXXD sit in the tabular list?
External causes of morbidity (V00-Y99), in the block Exposure to forces of nature (X30-X39).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.