O41.109 — Infection of amniotic sac and membranes, unspecified, unspecified trimester
O41.109 is a non-billable header ICD-10-CM code for infection of amniotic sac and membranes, unspecified, unspecified trimester. 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
One of the following 7th characters is to be assigned to each code under category O41. 7th character 0 is for single gestations and multiple gestations where the fetus is unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O41 that has a 7th character of 1 through 9.
- 0
- not applicable or unspecified
- 1
- fetus 1
- 2
- fetus 2
- 3
- fetus 3
- 4
- fetus 4
- 5
- fetus 5
- 9
- other fetus
Risk adjustment
O41.109 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 O41.109
7 child codes. Green means billable.
- O41.1090Infection of amniotic sac and membranes, unspecified, unspecified trimester, not applicable or unspecified
- O41.1091Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 1
- O41.1092Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 2
- O41.1093Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 3
- O41.1094Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 4
- O41.1095Infection of amniotic sac and membranes, unspecified, unspecified trimester, fetus 5
- O41.1099Infection of amniotic sac and membranes, unspecified, unspecified trimester, other fetus
Related codes at this level
Codes that share O41.10. If O41.109 is not quite right, the correct code is usually one of these.
Questions about O41.109
- Is O41.109 a billable ICD-10-CM code?
- No. O41.109 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does O41.109 sit in the tabular list?
- Pregnancy, childbirth and the puerperium (O00-O9A), in the block Maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48).