D40.10 — Neoplasm of uncertain behavior of unspecified testis
D40.10 is a billable, specific ICD-10-CM code for neoplasm of uncertain behavior of unspecified testis. It is valid for submission on a claim.
Risk adjustment
D40.10 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.
Medicare coverage
D40.10 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A55717Billing and Coding: Lab: Flow Cytometry
- A57689Billing and Coding: Lab: Flow Cytometry
- A57788Billing and Coding: Peripheral Nerve Blocks
- A57788Billing and Coding: Peripheral Nerve Blocks
How D40.10 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 D40.10.
- Tumor›testicular
- Androblastoma›unspecified site›male
- Arrhenoblastoma›unspecified site›male
- Gonadoblastoma›unspecified site›male
- Gonocytoma›unspecified site›male
- Gynandroblastoma›unspecified site›male
- Tumor›Leydig cell›unspecified site›male
Related codes at this level
Codes that share D40.1. If D40.10 is not quite right, the correct code is usually one of these.
Questions about D40.10
- Is D40.10 a billable ICD-10-CM code?
- Yes. D40.10 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D40.10 sit in the tabular list?
- Neoplasms (C00-D49), in the block Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48).