ICD-10-CM 2027
ICD-10 code for Petechia
From the official ICD-10-CM alphabetic index entry “Petechia, petechiae”. Page updated September 29, 2026.
About coding Petechia
The ICD-10-CM code for Petechia is R23.3 (Spontaneous ecchymoses). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on R23.3.
Within R23 (other skin changes), R23.3 is specifically for spontaneous ecchymoses. Related codes cover Cyanosis (R23.0), Pallor (R23.1), Flushing (R23.2), changes in skin texture (R23.4), other skin changes (R23.8) and unspecified skin changes (R23.9).
Don't report R23.3 together with the conditions in its Excludes1 note: ecchymoses of newborn (P54.5) and purpura (D69.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific Petechia codes (official index)
- newborn P54.5 — Neonatal cutaneous hemorrhage
Don't confuse with (Excludes1 for R23.3)
Common questions about Petechia ICD-10 codes
What is the ICD-10 code for Petechia?
- R23.3 — Spontaneous ecchymoses. More specific codes apply when the documentation supports them: P54.5.
What is the ICD-10 code for newborn petechia?
- P54.5 — Neonatal cutaneous hemorrhage.
Is R23.3 billable?
- Yes. R23.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R23.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R23.3 as a principal diagnosis.
Is R23.3 a CC or MCC?
- No. R23.3 is neither a CC nor an MCC under MS-DRG v44.0.