Is O33.7 a billable ICD-10-CM code?

No. O33.7 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does O33.7 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).

What cannot be coded together with O33.7?

O33.7 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

O33.7

O33.7 — Maternal care for disproportion due to other fetal deformities

Non-billable headerICD-10-CM

O33.7 is a non-billable header ICD-10-CM code for maternal care for disproportion due to other fetal deformities. 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 code O33.7. 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 code O33.7 with 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

Excludes1 — never code together

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

obstructed labor due to other fetal deformities (O66.3)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Maternal care for disproportion due to fetal ascites
Maternal care for disproportion due to fetal hydrops
Maternal care for disproportion due to fetal meningomyelocele
Maternal care for disproportion due to fetal sacral teratoma
Maternal care for disproportion due to fetal tumor

Risk adjustment

O33.7 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 O33.7 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 O33.7.

Deformity›fetal›with fetopelvic disproportion
Pregnancy›complicated by›disproportion›fetal deformities NEC(ascites) (hydrops) (meningomyelocele) (sacral teratoma) (tumor)
Pregnancy›complicated by›fetal›disproportion due to deformity(fetal)

Code to one of these instead O33.7

7 child codes. Green means billable.

Related codes at this level

Codes that share O33. If O33.7 is not quite right, the correct code is usually one of these.

Questions about O33.7

Is O33.7 a billable ICD-10-CM code?: No. O33.7 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does O33.7 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).
What cannot be coded together with O33.7?: O33.7 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.