MCMCB Pro
H26.4

H26.4Secondary cataract

Non-billable headerICD-10-CM

H26.4 is a non-billable header ICD-10-CM code for secondary cataract. It cannot be billed on its own: choose one of the more specific child codes below.

Other codes that can never be billed with H26.4

These codes carry an Excludes1 note pointing at H26.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading H26.4 alone.

  • H59Intraoperative and postprocedural complications and disorders of eye and adnexa, not elsewhere classified

Risk adjustment

H26.4 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.

Code to one of these instead H26.4

3 child codes. Green means billable.

Related codes at this level

Codes that share H26. If H26.4 is not quite right, the correct code is usually one of these.

Questions about H26.4

Is H26.4 a billable ICD-10-CM code?
No. H26.4 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does H26.4 sit in the tabular list?
Diseases of the eye and adnexa (H00-H59), in the block Disorders of lens (H25-H28).
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.