ICD-10-CM 2027
ICD-10 code for substernal pain
From the official ICD-10-CM alphabetic index entry “Pain (s) › substernal”. Page updated September 29, 2026.
About coding substernal pain
The ICD-10-CM code for substernal pain is R07.2 (Precordial pain).
Within R07 (pain in throat and chest), R07.2 is specifically for Precordial pain. Related codes cover pain in throat (R07.0), chest pain on breathing (R07.1), other chest pain (R07.8) and chest pain, unspecified (R07.9).
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 313 (Chest Pain, relative weight 0.7114), in MDC 05 (Diseases and Disorders of the Circulatory System), 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 substernal pain ICD-10 codes
What is the ICD-10 code for substernal pain?
- R07.2 — Precordial pain.
Is R07.2 billable?
- Yes. R07.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R07.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R07.2 as a principal diagnosis.
Is R07.2 a CC or MCC?
- No. R07.2 is neither a CC nor an MCC under MS-DRG v44.0.