Z3A.35

Billable

35 weeks gestation of pregnancy

35 weeks gestation of pregnancy

Status

Billable / Specific

Parent Code

Z3A.3

Cross-references

SNOMED CT

42924000084132007

UMLS

C3264114

Coding Notes

Code First

The underlying condition must be sequenced before this code

Related Codes(9)
Z3A.30

30 weeks gestation of pregnancy

BillableZ3A.31

31 weeks gestation of pregnancy

BillableZ3A.32

32 weeks gestation of pregnancy

BillableZ3A.33

33 weeks gestation of pregnancy

BillableZ3A.34

34 weeks gestation of pregnancy

BillableZ3A.36

36 weeks gestation of pregnancy

BillableZ3A.37

37 weeks gestation of pregnancy

BillableZ3A.38

38 weeks gestation of pregnancy

BillableZ3A.39

39 weeks gestation of pregnancy

Billable

How Z3A.35 differs from sibling codes

All children of Z3A.3 share the same parent. The wording below is what mechanically separates each sibling from Z3A.35.

Also Known As / Clinical Terms(5)

SNOMED CT

UMLS

Clinical Terms

  • Third trimester pregnancy less than 36 weeks
  • Gestation period, 35 weeks

Common questions

What is the ICD-10-CM code for 35 weeks gestation of pregnancy?

35 weeks gestation of pregnancy is coded as Z3A.35 in ICD-10-CM.

What is ICD-10 code Z3A.35?

Z3A.35 is the ICD-10-CM identifier for 35 weeks gestation of pregnancy. It is included in the official 2025 release of ICD-10-CM published by CMS and NCHS.

Is Z3A.35 a billable code?

Yes, Z3A.35 is a billable / specific ICD-10-CM code that can be used to indicate a diagnosis on a medical claim.

What is the parent code of Z3A.35?

Z3A.35 sits under Z3A.3 (Weeks of gestation of pregnancy, weeks 30-39) in the ICD-10-CM hierarchy.

What chapter does Z3A.35 belong to?

Z3A.35 is in Chapter 22: Factors Influencing Health Status and Contact With Health Services.

What are the synonyms for 35 weeks gestation of pregnancy?

In clinical text, 35 weeks gestation of pregnancy is also written as: Gestation period, 35 weeks, Third trimester pregnancy less than 36 weeks. Sourced from SNOMED CT, UMLS Metathesaurus, and clinical-terms enrichment.

Why does Z3A.35 map to multiple SNOMED CT concepts?

ICD-10-CM is a billing classification with broader categories than SNOMED CT’s clinical terminology. Z3A.35 captures the billing-level concept; SNOMED CT splits it into 2 clinical concepts: 429240000, 84132007.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.