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103

MS-DRG 103: HEADACHES WITHOUT MCC

DRGMedicalMDC 01

MS-DRG 103 is headaches without mcc, in MDC 01 (a medical DRG), at the without-CC/MCC level. Its FY2027 relative weight is 0.8220, so a case here pays less than the average Medicare inpatient stay (weight 1.0), with a geometric mean length of stay of 2.20 days. 95 ICD-10-CM principal diagnoses group into MS-DRGs 102–103 under the CMS definitions manual; the most-searched are listed below.

FY2027 payment factors

Relative weight
0.8220
Geometric mean LOS
2.20
Arithmetic mean LOS
2.80
Post-acute transfer
No

Principal diagnoses that group to MS-DRGs 102–103

From the CMS MS-DRG definitions manual’s principal-diagnosis index: 95 ICD-10-CM codes route here, and the CC/MCC status of the secondary diagnoses decides which of 102–103 the case lands in. The 24 most-searched:

  • R51.9Headache, unspecified
  • G43.909Migraine, unspecified, not intractable, without status migrainosus
  • F07.81Postconcussional syndrome
  • G43.109Migraine with aura, not intractable, without status migrainosus
  • G43.709Chronic migraine without aura, not intractable, without status migrainosus
  • G43.719Chronic migraine without aura, intractable, without status migrainosus
  • G43.009Migraine without aura, not intractable, without status migrainosus
  • G44.209Tension-type headache, unspecified, not intractable
  • G44.52New daily persistent headache (NDPH)
  • G44.86Cervicogenic headache
  • G44.89Other headache syndrome
  • G93.2Benign intracranial hypertension
  • G43.019Migraine without aura, intractable, without status migrainosus
  • G43.711Chronic migraine without aura, intractable, with status migrainosus
  • G43.809Other migraine, not intractable, without status migrainosus
  • G44.309Post-traumatic headache, unspecified, not intractable
  • G43.001Migraine without aura, not intractable, with status migrainosus
  • G43.119Migraine with aura, intractable, without status migrainosus
  • G43.E09Chronic migraine with aura, not intractable, without status migrainosus
  • G44.1Vascular headache, not elsewhere classified
  • G43.101Migraine with aura, not intractable, with status migrainosus
  • G43.919Migraine, unspecified, intractable, without status migrainosus
  • G44.229Chronic tension-type headache, not intractable
  • R51.0Headache with orthostatic component, not elsewhere classified

71 more codes group here. Open any code above for its full hierarchy, or check a whole claim in the free DRG calculator.

The severity splits

Same base DRG, split by whether a secondary diagnosis is a CC or MCC. The last column is the weight change from MS-DRG 103.

102HEADACHES WITH MCC1.1201+0.2981
103HEADACHES WITHOUT MCC0.8220

All FY2027 MS-DRGs · MDC 01

MS-DRG (IPPS Table 5)FY2027