ICD10BillableValid for clinical use

ICD-10 Code Q75.042: Lambdoid craniosynostosis, bilateral

Q75.042 is a billable ICD-10 diagnosis code used to classify Lambdoid craniosynostosis, bilateral in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

When is it used?

  • May be used when a clinician documents lambdoid craniosynostosis, bilateral in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
17Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
block
Q65-Q79Congenital malformations and deformations of the musculoskeletal system
category
Q75Other congenital malformations of skull and face bones
category
Q75.0Craniosynostosis
category
Q75.04Lambdoid craniosynostosis
currentQ75.04

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Coding guidelines

Common synonyms

Lambdoid craniosynostosis, bilateral

Frequently asked questions

Code details

CodeQ75.042
SystemICD10
Display nameLambdoid craniosynostosis, bilateral
ChapterCongenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
BlockCongenital malformations and deformations of the musculoskeletal system

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Craniosynostosis

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code Q75.042 for Lambdoid craniosynostosis, bilateral | HealthAssure