---
title: "ICD-10-CM Z13.40: Encounter for screening for unspecified… | BillingBrief"
description: "ICD-10-CM code Z13.40: Encounter for screening for unspecified developmental delays. Category, related codes, and the official source, in plain English."
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---

# Z13.40 Encounter for screening for unspecified developmental delays

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Encounter for screening for unspecified developmental delays

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Note

-   Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.

### Excludes1

Not coded together with this code. The exception is when the two conditions are unrelated to each other.

-   encounter for diagnostic examination-code to sign or symptom

### Excludes2

Not part of this code, but both can be coded when both are documented.

-   encounter for routine child health examination (Z00.12-)
-   examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)

## Related codes

-   [`Z13.30` Encounter for screening examination for mental health and behavioral disorders… ICD-10-CM](https://billingbrief.com/icd10/z13.30/)
-   [`Z13.31` Encounter for screening for depression ICD-10-CM](https://billingbrief.com/icd10/z13.31/)
-   [`Z13.32` Encounter for screening for maternal depression ICD-10-CM](https://billingbrief.com/icd10/z13.32/)
-   [`Z13.39` Encounter for screening examination for other mental health and behavioral disorders ICD-10-CM](https://billingbrief.com/icd10/z13.39/)
-   [`Z13.41` Encounter for autism screening ICD-10-CM](https://billingbrief.com/icd10/z13.41/)
-   [`Z13.42` Encounter for screening for global developmental delays (milestones) ICD-10-CM](https://billingbrief.com/icd10/z13.42/)
-   [`Z13.49` Encounter for screening for other developmental delays ICD-10-CM](https://billingbrief.com/icd10/z13.49/)
-   [`Z13.5` Encounter for screening for eye and ear disorders ICD-10-CM](https://billingbrief.com/icd10/z13.5/)

## Common questions

### Is Z13.40 a billable code?

Yes. Z13.40 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

Z13 Encounter for screening for other diseases and disorders

Chapter

Factors influencing health status and contact with health services

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).