ICD-10-CM 2027
ICD-10 code for Trigonocephaly
From the official ICD-10-CM alphabetic index entry “Trigonocephaly”. Page updated September 29, 2026.
About coding Trigonocephaly
The ICD-10-CM code for Trigonocephaly is Q75.03 (Metopic craniosynostosis).
Within Q75.0 (craniosynostosis), Q75.03 is specifically for Metopic craniosynostosis. Related codes cover unspecified (Q75.00), Sagittal craniosynostosis (Q75.01), Coronal craniosynostosis (Q75.02), Lambdoid craniosynostosis (Q75.04), multi-suture craniosynostosis (Q75.05) and other single-suture craniosynostosis (Q75.08).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC, relative weight 1.4908), DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC, relative weight 0.9783) and DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC, relative weight 0.7378), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Trigonocephaly ICD-10 codes
What is the ICD-10 code for Trigonocephaly?
- Q75.03 — Metopic craniosynostosis.
Is Q75.03 billable?
- Yes. Q75.03 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q75.03 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q75.03 as a principal diagnosis.
Is Q75.03 a CC or MCC?
- No. Q75.03 is neither a CC nor an MCC under MS-DRG v44.0.