R51.9 diagnosis code · Billable code · FY2027
R51.9 Headache, unspecified
- Billable
- Not CC/MCC
- POA reported
R51.9 ICD-10 code: a billable diagnosis code in FY2027, one of 2 billable codes in category R51.
ICD-10 code by name
- What is the ICD-10 code for headache, unspecified?
- Headache ICD-10 code: R51.9 Headache, unspecified. Alphabetic Index: Headache → R51.9. Search ICD-10 for headache
Where it sits
- CC / MCC
- Neither
- MS-DRG
- 102-103
- HCC V28
- –
- POA
- Reported
- Code Editor
- –
- Index entries
- 5
Instructions
At R51.9
Inclusion terms
- Facial pain NOS
Notes that also apply
Excludes2 from R51
Chapter 18 instructions (Notes 9, Excludes2 4): printed on the chapter 18 page.
Index entries
NCHS Alphabetic Index. Index first, then the Tabular List.
Medicare grouping and edits
| CC / MCC | Neither |
|---|---|
| Appendix B | MDC 01 Diseases and Disorders of the Nervous System, MS-DRG 102-103 (Headaches with MCC…) |
| Code Editor | – |
| POA | Reported |
| HCC V28 | – |
CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.