All ICD10 Codes

DRG 103

Medical DRG

Headaches without MCC

TypeMedicalMDC01Dx Codes95

What is MS-DRG 103?

MS-DRG 103 is a Medical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 01 (MDC 01) without a significant Complication or Comorbidity. It maps to 95 ICD-10-CM diagnosis codes. For FY 2026 it carries a relative weight of 0.8363 with a geometric mean length of stay of 2.3 days and an arithmetic mean of 2.9 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

Classification
Medical DRG
Diagnosis-driven grouping
MDC
Major Diagnostic Category 01
Linked Codes
95 diagnosis
Billable Dx
100%
95 of 95 shown

FY 2026 Payment Data

Official values from Table 5 of the FY 2026 IPPS Final Rule (CMS).

Relative Weight
0.8363
Payment multiplier vs. average case (1.0)
Geometric Mean LOS
2.3 days
Used for transfer payment calculations
Arithmetic Mean LOS
2.9 days
Average length of stay
Post-Acute Transfer
No
Not subject to the transfer policy

Related MS-DRGs in This Severity Group

The same clinical condition is split into separate DRGs by complication severity. MCC pays more than CC, which pays more than no CC/MCC.

DRGTitleRel. WeightGMLOS
102Headaches with MCC1.12092.9 days
103Headaches without MCCThis page0.83632.3 days

Linked ICD-10-CM Diagnosis Mappings

  • F07.81

    Postconcussional syndrome

    BillableChapter 5
  • G43.001

    Migraine without aura, not intractable, with status migrainosus

    BillableChapter 6
  • G43.009

    Migraine without aura, not intractable, without status migrainosus

    BillableChapter 6
  • G43.011

    Migraine without aura, intractable, with status migrainosus

    BillableChapter 6
  • G43.019

    Migraine without aura, intractable, without status migrainosus

    BillableChapter 6
  • G43.101

    Migraine with aura, not intractable, with status migrainosus

    BillableChapter 6
  • G43.109

    Migraine with aura, not intractable, without status migrainosus

    BillableChapter 6
  • G43.111

    Migraine with aura, intractable, with status migrainosus

    BillableChapter 6
  • G43.119

    Migraine with aura, intractable, without status migrainosus

    BillableChapter 6
  • G43.401

    Hemiplegic migraine, not intractable, with status migrainosus

    BillableChapter 6
  • G43.409

    Hemiplegic migraine, not intractable, without status migrainosus

    BillableChapter 6
  • G43.411

    Hemiplegic migraine, intractable, with status migrainosus

    BillableChapter 6
  • G43.419

    Hemiplegic migraine, intractable, without status migrainosus

    BillableChapter 6
  • G43.501

    Persistent migraine aura without cerebral infarction, not intractable, with status migrainosus

    BillableChapter 6
  • G43.509

    Persistent migraine aura without cerebral infarction, not intractable, without status migrainosus

    BillableChapter 6
  • G43.511

    Persistent migraine aura without cerebral infarction, intractable, with status migrainosus

    BillableChapter 6
  • G43.519

    Persistent migraine aura without cerebral infarction, intractable, without status migrainosus

    BillableChapter 6
  • G43.601

    Persistent migraine aura with cerebral infarction, not intractable, with status migrainosus

    BillableChapter 6
  • G43.609

    Persistent migraine aura with cerebral infarction, not intractable, without status migrainosus

    BillableChapter 6
  • G43.611

    Persistent migraine aura with cerebral infarction, intractable, with status migrainosus

    BillableChapter 6
  • G43.619

    Persistent migraine aura with cerebral infarction, intractable, without status migrainosus

    BillableChapter 6
  • G43.701

    Chronic migraine without aura, not intractable, with status migrainosus

    BillableChapter 6
  • G43.709

    Chronic migraine without aura, not intractable, without status migrainosus

    BillableChapter 6
  • G43.711

    Chronic migraine without aura, intractable, with status migrainosus

    BillableChapter 6
  • G43.719

    Chronic migraine without aura, intractable, without status migrainosus

    BillableChapter 6
  • G43.801

    Other migraine, not intractable, with status migrainosus

    BillableChapter 6
  • G43.809

    Other migraine, not intractable, without status migrainosus

    BillableChapter 6
  • G43.811

    Other migraine, intractable, with status migrainosus

    BillableChapter 6
  • G43.819

    Other migraine, intractable, without status migrainosus

    BillableChapter 6
  • G43.821

    Menstrual migraine, not intractable, with status migrainosus

    BillableChapter 6
  • G43.829

    Menstrual migraine, not intractable, without status migrainosus

    BillableChapter 6
  • G43.831

    Menstrual migraine, intractable, with status migrainosus

    BillableChapter 6
  • G43.839

    Menstrual migraine, intractable, without status migrainosus

    BillableChapter 6
  • G43.901

    Migraine, unspecified, not intractable, with status migrainosus

    BillableChapter 6
  • G43.909

    Migraine, unspecified, not intractable, without status migrainosus

    BillableChapter 6
  • G43.911

    Migraine, unspecified, intractable, with status migrainosus

    BillableChapter 6
  • G43.919

    Migraine, unspecified, intractable, without status migrainosus

    BillableChapter 6
  • G43.A0

    Cyclical vomiting, in migraine, not intractable

    BillableChapter 6
  • G43.A1

    Cyclical vomiting, in migraine, intractable

    BillableChapter 6
  • G43.B0

    Ophthalmoplegic migraine, not intractable

    BillableChapter 6
  • G43.B1

    Ophthalmoplegic migraine, intractable

    BillableChapter 6
  • G43.C0

    Periodic headache syndromes in child or adult, not intractable

    BillableChapter 6
  • G43.C1

    Periodic headache syndromes in child or adult, intractable

    BillableChapter 6
  • G43.D0

    Abdominal migraine, not intractable

    BillableChapter 6
  • G43.D1

    Abdominal migraine, intractable

    BillableChapter 6
  • G43.E01

    Chronic migraine with aura, not intractable, with status migrainosus

    BillableChapter 6
  • G43.E09

    Chronic migraine with aura, not intractable, without status migrainosus

    BillableChapter 6
  • G43.E11

    Chronic migraine with aura, intractable, with status migrainosus

    BillableChapter 6
  • G43.E19

    Chronic migraine with aura, intractable, without status migrainosus

    BillableChapter 6
  • G44.001

    Cluster headache syndrome, unspecified, intractable

    BillableChapter 6
  • G44.009

    Cluster headache syndrome, unspecified, not intractable

    BillableChapter 6
  • G44.011

    Episodic cluster headache, intractable

    BillableChapter 6
  • G44.019

    Episodic cluster headache, not intractable

    BillableChapter 6
  • G44.021

    Chronic cluster headache, intractable

    BillableChapter 6
  • G44.029

    Chronic cluster headache, not intractable

    BillableChapter 6
  • G44.031

    Episodic paroxysmal hemicrania, intractable

    BillableChapter 6
  • G44.039

    Episodic paroxysmal hemicrania, not intractable

    BillableChapter 6
  • G44.041

    Chronic paroxysmal hemicrania, intractable

    BillableChapter 6
  • G44.049

    Chronic paroxysmal hemicrania, not intractable

    BillableChapter 6
  • G44.051

    Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), intractable

    BillableChapter 6
  • G44.059

    Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), not intractable

    BillableChapter 6
  • G44.091

    Other trigeminal autonomic cephalgias (TAC), intractable

    BillableChapter 6
  • G44.099

    Other trigeminal autonomic cephalgias (TAC), not intractable

    BillableChapter 6
  • G44.1

    Vascular headache, not elsewhere classified

    BillableChapter 6
  • G44.201

    Tension-type headache, unspecified, intractable

    BillableChapter 6
  • G44.209

    Tension-type headache, unspecified, not intractable

    BillableChapter 6
  • G44.211

    Episodic tension-type headache, intractable

    BillableChapter 6
  • G44.219

    Episodic tension-type headache, not intractable

    BillableChapter 6
  • G44.221

    Chronic tension-type headache, intractable

    BillableChapter 6
  • G44.229

    Chronic tension-type headache, not intractable

    BillableChapter 6
  • G44.301

    Post-traumatic headache, unspecified, intractable

    BillableChapter 6
  • G44.309

    Post-traumatic headache, unspecified, not intractable

    BillableChapter 6
  • G44.311

    Acute post-traumatic headache, intractable

    BillableChapter 6
  • G44.319

    Acute post-traumatic headache, not intractable

    BillableChapter 6
  • G44.321

    Chronic post-traumatic headache, intractable

    BillableChapter 6
  • G44.329

    Chronic post-traumatic headache, not intractable

    BillableChapter 6
  • G44.40

    Drug-induced headache, not elsewhere classified, not intractable

    BillableChapter 6
  • G44.41

    Drug-induced headache, not elsewhere classified, intractable

    BillableChapter 6
  • G44.51

    Hemicrania continua

    BillableChapter 6
  • G44.52

    New daily persistent headache (NDPH)

    BillableChapter 6
  • G44.53

    Primary thunderclap headache

    BillableChapter 6
  • G44.59

    Other complicated headache syndrome

    BillableChapter 6
  • G44.81

    Hypnic headache

    BillableChapter 6
  • G44.82

    Headache associated with sexual activity

    BillableChapter 6
  • G44.83

    Primary cough headache

    BillableChapter 6
  • G44.84

    Primary exertional headache

    BillableChapter 6
  • G44.85

    Primary stabbing headache

    BillableChapter 6
  • G44.86

    Cervicogenic headache

    BillableChapter 6
  • G44.89

    Other headache syndrome

    BillableChapter 6
  • G93.2

    Benign intracranial hypertension

    BillableChapter 6
  • G97.1

    Other reaction to spinal and lumbar puncture

    BillableChapter 6
  • I67.7

    Cerebral arteritis, not elsewhere classified

    BillableChapter 9
  • I68.2

    Cerebral arteritis in other diseases classified elsewhere

    BillableChapter 9
  • R51.0

    Headache with orthostatic component, not elsewhere classified

    BillableChapter 18
  • R51.9

    Headache, unspecified

    BillableChapter 18